diff --git a/app/code/Magento/Inventory/Model/ResourceModel/SourceItem/DeleteMultiple.php b/app/code/Magento/Inventory/Model/ResourceModel/SourceItem/DeleteMultiple.php
new file mode 100644
index 000000000000..f52f8f57491a
--- /dev/null
+++ b/app/code/Magento/Inventory/Model/ResourceModel/SourceItem/DeleteMultiple.php
@@ -0,0 +1,59 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+
+namespace Magento\Inventory\Model\ResourceModel\SourceItem;
+
+use Magento\Framework\App\ResourceConnection;
+use Magento\Inventory\Model\ResourceModel\SourceItem as SourceItemResourceModel;
+use Magento\InventoryApi\Api\Data\SourceItemInterface;
+
+/**
+ * Implementation of SourceItem delete multiple operation for specific db layer
+ * Delete Multiple used here for performance efficient purposes over single delete operation
+ */
+class DeleteMultiple
+{
+    /**
+     * @var ResourceConnection
+     */
+    private $resourceConnection;
+
+    /**
+     * @param ResourceConnection $resourceConnection
+     */
+    public function __construct(
+        ResourceConnection $resourceConnection
+    ) {
+        $this->resourceConnection = $resourceConnection;
+    }
+
+    /**
+     * Multiple delete source items
+     *
+     * @param SourceItemInterface[] $sourceItems
+     * @return void
+     */
+    public function execute(array $sourceItems)
+    {
+        if (!count($sourceItems)) {
+            return;
+        }
+
+        $connection = $this->resourceConnection->getConnection();
+        $tableName = $this->resourceConnection->getTableName(SourceItemResourceModel::TABLE_NAME_SOURCE_ITEM);
+
+        $skuList = [];
+        foreach ($sourceItems as $sourceItem) {
+            $skuList[] = $sourceItem->getSku();
+        }
+
+        $whereCond = [
+            $connection->quoteInto(SourceItemInterface::SKU . ' IN(?)', array_unique($skuList))
+        ];
+
+        $connection->delete($tableName, $whereCond);
+    }
+}
diff --git a/app/code/Magento/Inventory/Model/SourceItem/Command/SourceItemsDelete.php b/app/code/Magento/Inventory/Model/SourceItem/Command/SourceItemsDelete.php
new file mode 100644
index 000000000000..d74ad888dfdb
--- /dev/null
+++ b/app/code/Magento/Inventory/Model/SourceItem/Command/SourceItemsDelete.php
@@ -0,0 +1,58 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\Inventory\Model\SourceItem\Command;
+
+use Magento\Framework\Exception\CouldNotDeleteException;
+use Magento\Framework\Exception\InputException;
+use Magento\Inventory\Model\ResourceModel\SourceItem\DeleteMultiple;
+use Magento\InventoryApi\Api\SourceItemsDeleteInterface;
+use Psr\Log\LoggerInterface;
+
+/**
+ * @inheritdoc
+ */
+class SourceItemsDelete implements SourceItemsDeleteInterface
+{
+    /**
+     * @var DeleteMultiple
+     */
+    private $deleteMultiple;
+
+    /**
+     * @var LoggerInterface
+     */
+    private $logger;
+
+    /**
+     * @param DeleteMultiple $deleteMultiple
+     * @param LoggerInterface $logger
+     */
+    public function __construct(
+        DeleteMultiple $deleteMultiple,
+        LoggerInterface $logger
+    ) {
+        $this->deleteMultiple = $deleteMultiple;
+        $this->logger = $logger;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function execute(array $sourceItems)
+    {
+        if (empty($sourceItems)) {
+            throw new InputException(__('Input data is empty'));
+        }
+        try {
+            $this->deleteMultiple->execute($sourceItems);
+        } catch (\Exception $e) {
+            $this->logger->error($e->getMessage());
+            throw new CouldNotDeleteException(__('Could not delete Source Item'), $e);
+        }
+    }
+}
diff --git a/app/code/Magento/Inventory/Test/Integration/Model/ResourceModel/SourceItem/DeleteMultipleTest.php b/app/code/Magento/Inventory/Test/Integration/Model/ResourceModel/SourceItem/DeleteMultipleTest.php
new file mode 100644
index 000000000000..c02de3f64756
--- /dev/null
+++ b/app/code/Magento/Inventory/Test/Integration/Model/ResourceModel/SourceItem/DeleteMultipleTest.php
@@ -0,0 +1,63 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\Inventory\Test\Integration\Model\ResourceModel\SourceItem;
+
+use Magento\Framework\Api\SearchCriteriaBuilder;
+use Magento\Inventory\Model\ResourceModel\SourceItem\DeleteMultiple;
+use Magento\InventoryApi\Api\SourceItemRepositoryInterface;
+use Magento\TestFramework\Helper\Bootstrap;
+use PHPUnit\Framework\TestCase;
+
+class DeleteMultipleTest extends TestCase
+{
+
+    /**
+     * @var DeleteMultiple
+     */
+    private $deleteModel;
+
+    /**
+     * @var SourceItemRepositoryInterface
+     */
+    private $sourceItemRepository;
+
+    /**
+     * @var SearchCriteriaBuilder
+     */
+    private $searchCriteriaBuilder;
+
+    protected function setUp()
+    {
+        $this->deleteModel = Bootstrap::getObjectManager()->create(DeleteMultiple::class);
+        $this->sourceItemRepository = Bootstrap::getObjectManager()->create(SourceItemRepositoryInterface::class);
+        $this->searchCriteriaBuilder = Bootstrap::getObjectManager()->create(SearchCriteriaBuilder::class);
+    }
+
+    /**
+     * @magentoDataFixture ../../../../app/code/Magento/InventoryApi/Test/_files/products.php
+     * @magentoDataFixture ../../../../app/code/Magento/InventoryApi/Test/_files/sources.php
+     * @magentoDataFixture ../../../../app/code/Magento/InventoryApi/Test/_files/source_items.php
+     */
+    public function testDeleteMultipleWithEmptySourceItems()
+    {
+        $expectedCount = count($this->getSourceItems());
+
+        $this->deleteModel->execute([]);
+
+        $this->assertCount($expectedCount, $this->getSourceItems());
+    }
+
+    /**
+     * @return \Magento\InventoryApi\Api\Data\SourceItemInterface[]
+     */
+    private function getSourceItems(): array
+    {
+        $searchCriteria = $this->searchCriteriaBuilder->create();
+        return $this->sourceItemRepository->getList($searchCriteria)->getItems();
+    }
+}
diff --git a/app/code/Magento/Inventory/etc/di.xml b/app/code/Magento/Inventory/etc/di.xml
index cc3a20ee7a61..36dd518d251e 100644
--- a/app/code/Magento/Inventory/etc/di.xml
+++ b/app/code/Magento/Inventory/etc/di.xml
@@ -33,6 +33,7 @@
     <!-- Source Item -->
     <preference for="Magento\InventoryApi\Api\SourceItemRepositoryInterface" type="Magento\Inventory\Model\SourceItemRepository"/>
     <preference for="Magento\InventoryApi\Api\SourceItemsSaveInterface" type="Magento\Inventory\Model\SourceItem\Command\SourceItemsSave"/>
+    <preference for="Magento\InventoryApi\Api\SourceItemsDeleteInterface" type="Magento\Inventory\Model\SourceItem\Command\SourceItemsDelete"/>
     <preference for="Magento\InventoryApi\Api\Data\SourceItemInterface" type="Magento\Inventory\Model\SourceItem"/>
     <preference for="Magento\InventoryApi\Api\Data\SourceItemSearchResultsInterface" type="Magento\Inventory\Model\SourceItemSearchResults"/>
     <preference for="Magento\Inventory\Model\SourceItem\Command\DeleteInterface" type="Magento\Inventory\Model\SourceItem\Command\Delete"/>
diff --git a/app/code/Magento/InventoryApi/Api/SourceItemsDeleteInterface.php b/app/code/Magento/InventoryApi/Api/SourceItemsDeleteInterface.php
new file mode 100644
index 000000000000..1b1157bffa90
--- /dev/null
+++ b/app/code/Magento/InventoryApi/Api/SourceItemsDeleteInterface.php
@@ -0,0 +1,29 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\InventoryApi\Api;
+
+/**
+ * Service method for source items delete multiple
+ * Performance efficient API, used for stock synchronization
+ *
+ * Used fully qualified namespaces in annotations for proper work of WebApi request parser
+ *
+ * @api
+ */
+interface SourceItemsDeleteInterface
+{
+    /**
+     * Delete Multiple Source item data
+     *
+     * @param \Magento\InventoryApi\Api\Data\SourceItemInterface[] $sourceItems
+     * @return void
+     * @throws \Magento\Framework\Exception\InputException
+     * @throws \Magento\Framework\Exception\CouldNotSaveException
+     */
+    public function execute(array $sourceItems);
+}
diff --git a/app/code/Magento/InventoryImportExport/LICENSE.txt b/app/code/Magento/InventoryImportExport/LICENSE.txt
new file mode 100644
index 000000000000..49525fd99da9
--- /dev/null
+++ b/app/code/Magento/InventoryImportExport/LICENSE.txt
@@ -0,0 +1,48 @@
+
+Open Software License ("OSL") v. 3.0
+
+This Open Software License (the "License") applies to any original work of authorship (the "Original Work") whose owner (the "Licensor") has placed the following licensing notice adjacent to the copyright notice for the Original Work:
+
+Licensed under the Open Software License version 3.0
+
+   1. Grant of Copyright License. Licensor grants You a worldwide, royalty-free, non-exclusive, sublicensable license, for the duration of the copyright, to do the following:
+
+         1. to reproduce the Original Work in copies, either alone or as part of a collective work;
+
+         2. to translate, adapt, alter, transform, modify, or arrange the Original Work, thereby creating derivative works ("Derivative Works") based upon the Original Work;
+
+         3. to distribute or communicate copies of the Original Work and Derivative Works to the public, with the proviso that copies of Original Work or Derivative Works that You distribute or communicate shall be licensed under this Open Software License;
+
+         4. to perform the Original Work publicly; and
+
+         5. to display the Original Work publicly. 
+
+   2. Grant of Patent License. Licensor grants You a worldwide, royalty-free, non-exclusive, sublicensable license, under patent claims owned or controlled by the Licensor that are embodied in the Original Work as furnished by the Licensor, for the duration of the patents, to make, use, sell, offer for sale, have made, and import the Original Work and Derivative Works.
+
+   3. Grant of Source Code License. The term "Source Code" means the preferred form of the Original Work for making modifications to it and all available documentation describing how to modify the Original Work. Licensor agrees to provide a machine-readable copy of the Source Code of the Original Work along with each copy of the Original Work that Licensor distributes. Licensor reserves the right to satisfy this obligation by placing a machine-readable copy of the Source Code in an information repository reasonably calculated to permit inexpensive and convenient access by You for as long as Licensor continues to distribute the Original Work.
+
+   4. Exclusions From License Grant. Neither the names of Licensor, nor the names of any contributors to the Original Work, nor any of their trademarks or service marks, may be used to endorse or promote products derived from this Original Work without express prior permission of the Licensor. Except as expressly stated herein, nothing in this License grants any license to Licensor's trademarks, copyrights, patents, trade secrets or any other intellectual property. No patent license is granted to make, use, sell, offer for sale, have made, or import embodiments of any patent claims other than the licensed claims defined in Section 2. No license is granted to the trademarks of Licensor even if such marks are included in the Original Work. Nothing in this License shall be interpreted to prohibit Licensor from licensing under terms different from this License any Original Work that Licensor otherwise would have a right to license.
+
+   5. External Deployment. The term "External Deployment" means the use, distribution, or communication of the Original Work or Derivative Works in any way such that the Original Work or Derivative Works may be used by anyone other than You, whether those works are distributed or communicated to those persons or made available as an application intended for use over a network. As an express condition for the grants of license hereunder, You must treat any External Deployment by You of the Original Work or a Derivative Work as a distribution under section 1(c).
+
+   6. Attribution Rights. You must retain, in the Source Code of any Derivative Works that You create, all copyright, patent, or trademark notices from the Source Code of the Original Work, as well as any notices of licensing and any descriptive text identified therein as an "Attribution Notice." You must cause the Source Code for any Derivative Works that You create to carry a prominent Attribution Notice reasonably calculated to inform recipients that You have modified the Original Work.
+
+   7. Warranty of Provenance and Disclaimer of Warranty. Licensor warrants that the copyright in and to the Original Work and the patent rights granted herein by Licensor are owned by the Licensor or are sublicensed to You under the terms of this License with the permission of the contributor(s) of those copyrights and patent rights. Except as expressly stated in the immediately preceding sentence, the Original Work is provided under this License on an "AS IS" BASIS and WITHOUT WARRANTY, either express or implied, including, without limitation, the warranties of non-infringement, merchantability or fitness for a particular purpose. THE ENTIRE RISK AS TO THE QUALITY OF THE ORIGINAL WORK IS WITH YOU. This DISCLAIMER OF WARRANTY constitutes an essential part of this License. No license to the Original Work is granted by this License except under this disclaimer.
+
+   8. Limitation of Liability. Under no circumstances and under no legal theory, whether in tort (including negligence), contract, or otherwise, shall the Licensor be liable to anyone for any indirect, special, incidental, or consequential damages of any character arising as a result of this License or the use of the Original Work including, without limitation, damages for loss of goodwill, work stoppage, computer failure or malfunction, or any and all other commercial damages or losses. This limitation of liability shall not apply to the extent applicable law prohibits such limitation.
+
+   9. Acceptance and Termination. If, at any time, You expressly assented to this License, that assent indicates your clear and irrevocable acceptance of this License and all of its terms and conditions. If You distribute or communicate copies of the Original Work or a Derivative Work, You must make a reasonable effort under the circumstances to obtain the express assent of recipients to the terms of this License. This License conditions your rights to undertake the activities listed in Section 1, including your right to create Derivative Works based upon the Original Work, and doing so without honoring these terms and conditions is prohibited by copyright law and international treaty. Nothing in this License is intended to affect copyright exceptions and limitations (including 'fair use' or 'fair dealing'). This License shall terminate immediately and You may no longer exercise any of the rights granted to You by this License upon your failure to honor the conditions in Section 1(c).
+
+  10. Termination for Patent Action. This License shall terminate automatically and You may no longer exercise any of the rights granted to You by this License as of the date You commence an action, including a cross-claim or counterclaim, against Licensor or any licensee alleging that the Original Work infringes a patent. This termination provision shall not apply for an action alleging patent infringement by combinations of the Original Work with other software or hardware.
+
+  11. Jurisdiction, Venue and Governing Law. Any action or suit relating to this License may be brought only in the courts of a jurisdiction wherein the Licensor resides or in which Licensor conducts its primary business, and under the laws of that jurisdiction excluding its conflict-of-law provisions. The application of the United Nations Convention on Contracts for the International Sale of Goods is expressly excluded. Any use of the Original Work outside the scope of this License or after its termination shall be subject to the requirements and penalties of copyright or patent law in the appropriate jurisdiction. This section shall survive the termination of this License.
+
+  12. Attorneys' Fees. In any action to enforce the terms of this License or seeking damages relating thereto, the prevailing party shall be entitled to recover its costs and expenses, including, without limitation, reasonable attorneys' fees and costs incurred in connection with such action, including any appeal of such action. This section shall survive the termination of this License.
+
+  13. Miscellaneous. If any provision of this License is held to be unenforceable, such provision shall be reformed only to the extent necessary to make it enforceable.
+
+  14. Definition of "You" in This License. "You" throughout this License, whether in upper or lower case, means an individual or a legal entity exercising rights under, and complying with all of the terms of, this License. For legal entities, "You" includes any entity that controls, is controlled by, or is under common control with you. For purposes of this definition, "control" means (i) the power, direct or indirect, to cause the direction or management of such entity, whether by contract or otherwise, or (ii) ownership of fifty percent (50%) or more of the outstanding shares, or (iii) beneficial ownership of such entity.
+
+  15. Right to Use. You may use the Original Work in all ways not otherwise restricted or conditioned by this License or by law, and Licensor promises not to interfere with or be responsible for such uses by You.
+
+  16. Modification of This License. This License is Copyright (C) 2005 Lawrence Rosen. Permission is granted to copy, distribute, or communicate this License without modification. Nothing in this License permits You to modify this License as applied to the Original Work or to Derivative Works. However, You may modify the text of this License and copy, distribute or communicate your modified version (the "Modified License") and apply it to other original works of authorship subject to the following conditions: (i) You may not indicate in any way that your Modified License is the "Open Software License" or "OSL" and you may not use those names in the name of your Modified License; (ii) You must replace the notice specified in the first paragraph above with the notice "Licensed under <insert your license name here>" or with a notice of your own that is not confusingly similar to the notice in this License; and (iii) You may not claim that your original works are open source software unless your Modified License has been approved by Open Source Initiative (OSI) and You comply with its license review and certification process.
\ No newline at end of file
diff --git a/app/code/Magento/InventoryImportExport/LICENSE_AFL.txt b/app/code/Magento/InventoryImportExport/LICENSE_AFL.txt
new file mode 100644
index 000000000000..f39d641b18a1
--- /dev/null
+++ b/app/code/Magento/InventoryImportExport/LICENSE_AFL.txt
@@ -0,0 +1,48 @@
+
+Academic Free License ("AFL") v. 3.0
+
+This Academic Free License (the "License") applies to any original work of authorship (the "Original Work") whose owner (the "Licensor") has placed the following licensing notice adjacent to the copyright notice for the Original Work:
+
+Licensed under the Academic Free License version 3.0
+
+   1. Grant of Copyright License. Licensor grants You a worldwide, royalty-free, non-exclusive, sublicensable license, for the duration of the copyright, to do the following:
+
+         1. to reproduce the Original Work in copies, either alone or as part of a collective work;
+
+         2. to translate, adapt, alter, transform, modify, or arrange the Original Work, thereby creating derivative works ("Derivative Works") based upon the Original Work;
+
+         3. to distribute or communicate copies of the Original Work and Derivative Works to the public, under any license of your choice that does not contradict the terms and conditions, including Licensor's reserved rights and remedies, in this Academic Free License;
+
+         4. to perform the Original Work publicly; and
+
+         5. to display the Original Work publicly.
+
+   2. Grant of Patent License. Licensor grants You a worldwide, royalty-free, non-exclusive, sublicensable license, under patent claims owned or controlled by the Licensor that are embodied in the Original Work as furnished by the Licensor, for the duration of the patents, to make, use, sell, offer for sale, have made, and import the Original Work and Derivative Works.
+
+   3. Grant of Source Code License. The term "Source Code" means the preferred form of the Original Work for making modifications to it and all available documentation describing how to modify the Original Work. Licensor agrees to provide a machine-readable copy of the Source Code of the Original Work along with each copy of the Original Work that Licensor distributes. Licensor reserves the right to satisfy this obligation by placing a machine-readable copy of the Source Code in an information repository reasonably calculated to permit inexpensive and convenient access by You for as long as Licensor continues to distribute the Original Work.
+
+   4. Exclusions From License Grant. Neither the names of Licensor, nor the names of any contributors to the Original Work, nor any of their trademarks or service marks, may be used to endorse or promote products derived from this Original Work without express prior permission of the Licensor. Except as expressly stated herein, nothing in this License grants any license to Licensor's trademarks, copyrights, patents, trade secrets or any other intellectual property. No patent license is granted to make, use, sell, offer for sale, have made, or import embodiments of any patent claims other than the licensed claims defined in Section 2. No license is granted to the trademarks of Licensor even if such marks are included in the Original Work. Nothing in this License shall be interpreted to prohibit Licensor from licensing under terms different from this License any Original Work that Licensor otherwise would have a right to license.
+
+   5. External Deployment. The term "External Deployment" means the use, distribution, or communication of the Original Work or Derivative Works in any way such that the Original Work or Derivative Works may be used by anyone other than You, whether those works are distributed or communicated to those persons or made available as an application intended for use over a network. As an express condition for the grants of license hereunder, You must treat any External Deployment by You of the Original Work or a Derivative Work as a distribution under section 1(c).
+
+   6. Attribution Rights. You must retain, in the Source Code of any Derivative Works that You create, all copyright, patent, or trademark notices from the Source Code of the Original Work, as well as any notices of licensing and any descriptive text identified therein as an "Attribution Notice." You must cause the Source Code for any Derivative Works that You create to carry a prominent Attribution Notice reasonably calculated to inform recipients that You have modified the Original Work.
+
+   7. Warranty of Provenance and Disclaimer of Warranty. Licensor warrants that the copyright in and to the Original Work and the patent rights granted herein by Licensor are owned by the Licensor or are sublicensed to You under the terms of this License with the permission of the contributor(s) of those copyrights and patent rights. Except as expressly stated in the immediately preceding sentence, the Original Work is provided under this License on an "AS IS" BASIS and WITHOUT WARRANTY, either express or implied, including, without limitation, the warranties of non-infringement, merchantability or fitness for a particular purpose. THE ENTIRE RISK AS TO THE QUALITY OF THE ORIGINAL WORK IS WITH YOU. This DISCLAIMER OF WARRANTY constitutes an essential part of this License. No license to the Original Work is granted by this License except under this disclaimer.
+
+   8. Limitation of Liability. Under no circumstances and under no legal theory, whether in tort (including negligence), contract, or otherwise, shall the Licensor be liable to anyone for any indirect, special, incidental, or consequential damages of any character arising as a result of this License or the use of the Original Work including, without limitation, damages for loss of goodwill, work stoppage, computer failure or malfunction, or any and all other commercial damages or losses. This limitation of liability shall not apply to the extent applicable law prohibits such limitation.
+
+   9. Acceptance and Termination. If, at any time, You expressly assented to this License, that assent indicates your clear and irrevocable acceptance of this License and all of its terms and conditions. If You distribute or communicate copies of the Original Work or a Derivative Work, You must make a reasonable effort under the circumstances to obtain the express assent of recipients to the terms of this License. This License conditions your rights to undertake the activities listed in Section 1, including your right to create Derivative Works based upon the Original Work, and doing so without honoring these terms and conditions is prohibited by copyright law and international treaty. Nothing in this License is intended to affect copyright exceptions and limitations (including "fair use" or "fair dealing"). This License shall terminate immediately and You may no longer exercise any of the rights granted to You by this License upon your failure to honor the conditions in Section 1(c).
+
+  10. Termination for Patent Action. This License shall terminate automatically and You may no longer exercise any of the rights granted to You by this License as of the date You commence an action, including a cross-claim or counterclaim, against Licensor or any licensee alleging that the Original Work infringes a patent. This termination provision shall not apply for an action alleging patent infringement by combinations of the Original Work with other software or hardware.
+
+  11. Jurisdiction, Venue and Governing Law. Any action or suit relating to this License may be brought only in the courts of a jurisdiction wherein the Licensor resides or in which Licensor conducts its primary business, and under the laws of that jurisdiction excluding its conflict-of-law provisions. The application of the United Nations Convention on Contracts for the International Sale of Goods is expressly excluded. Any use of the Original Work outside the scope of this License or after its termination shall be subject to the requirements and penalties of copyright or patent law in the appropriate jurisdiction. This section shall survive the termination of this License.
+
+  12. Attorneys' Fees. In any action to enforce the terms of this License or seeking damages relating thereto, the prevailing party shall be entitled to recover its costs and expenses, including, without limitation, reasonable attorneys' fees and costs incurred in connection with such action, including any appeal of such action. This section shall survive the termination of this License.
+
+  13. Miscellaneous. If any provision of this License is held to be unenforceable, such provision shall be reformed only to the extent necessary to make it enforceable.
+
+  14. Definition of "You" in This License. "You" throughout this License, whether in upper or lower case, means an individual or a legal entity exercising rights under, and complying with all of the terms of, this License. For legal entities, "You" includes any entity that controls, is controlled by, or is under common control with you. For purposes of this definition, "control" means (i) the power, direct or indirect, to cause the direction or management of such entity, whether by contract or otherwise, or (ii) ownership of fifty percent (50%) or more of the outstanding shares, or (iii) beneficial ownership of such entity.
+
+  15. Right to Use. You may use the Original Work in all ways not otherwise restricted or conditioned by this License or by law, and Licensor promises not to interfere with or be responsible for such uses by You.
+
+  16. Modification of This License. This License is Copyright © 2005 Lawrence Rosen. Permission is granted to copy, distribute, or communicate this License without modification. Nothing in this License permits You to modify this License as applied to the Original Work or to Derivative Works. However, You may modify the text of this License and copy, distribute or communicate your modified version (the "Modified License") and apply it to other original works of authorship subject to the following conditions: (i) You may not indicate in any way that your Modified License is the "Academic Free License" or "AFL" and you may not use those names in the name of your Modified License; (ii) You must replace the notice specified in the first paragraph above with the notice "Licensed under <insert your license name here>" or with a notice of your own that is not confusingly similar to the notice in this License; and (iii) You may not claim that your original works are open source software unless your Modified License has been approved by Open Source Initiative (OSI) and You comply with its license review and certification process.
diff --git a/app/code/Magento/InventoryImportExport/Model/Export/AttributeCollectionProvider.php b/app/code/Magento/InventoryImportExport/Model/Export/AttributeCollectionProvider.php
new file mode 100644
index 000000000000..a65e620515e2
--- /dev/null
+++ b/app/code/Magento/InventoryImportExport/Model/Export/AttributeCollectionProvider.php
@@ -0,0 +1,87 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+
+namespace Magento\InventoryImportExport\Model\Export;
+
+use Magento\Eav\Model\Entity\AttributeFactory;
+use Magento\Framework\Data\Collection;
+use Magento\ImportExport\Model\Export\Factory as CollectionFactory;
+use Magento\InventoryApi\Api\Data\SourceItemInterface;
+use Magento\InventoryImportExport\Model\Export\Source\StockStatus;
+
+/**
+ * @api
+ */
+class AttributeCollectionProvider
+{
+    /**
+     * @var Collection
+     */
+    private $collection;
+
+    /**
+     * @var AttributeFactory
+     */
+    private $attributeFactory;
+
+    /**
+     * @param CollectionFactory $collectionFactory
+     * @param AttributeFactory $attributeFactory
+     * @throws \InvalidArgumentException
+     */
+    public function __construct(
+        CollectionFactory $collectionFactory,
+        AttributeFactory $attributeFactory
+    ) {
+        $this->collection = $collectionFactory->create(Collection::class);
+        $this->attributeFactory = $attributeFactory;
+    }
+
+    /**
+     * @return Collection
+     * @throws \Exception
+     */
+    public function get(): Collection
+    {
+        if (count($this->collection) === 0) {
+            /** @var \Magento\Eav\Model\Entity\Attribute $sourceIdAttribute */
+            $sourceIdAttribute = $this->attributeFactory->create();
+            $sourceIdAttribute->setId(SourceItemInterface::SOURCE_ID);
+            $sourceIdAttribute->setDefaultFrontendLabel(SourceItemInterface::SOURCE_ID);
+            $sourceIdAttribute->setAttributeCode(SourceItemInterface::SOURCE_ID);
+            $sourceIdAttribute->setBackendType('int');
+            $this->collection->addItem($sourceIdAttribute);
+
+            /** @var \Magento\Eav\Model\Entity\Attribute $skuAttribute */
+            $skuAttribute = $this->attributeFactory->create();
+            $skuAttribute->setId(SourceItemInterface::SKU);
+            $skuAttribute->setBackendType('varchar');
+            $skuAttribute->setDefaultFrontendLabel(SourceItemInterface::SKU);
+            $skuAttribute->setAttributeCode(SourceItemInterface::SKU);
+            $this->collection->addItem($skuAttribute);
+
+            /** @var \Magento\Eav\Model\Entity\Attribute $statusIdAttribute */
+            $statusIdAttribute = $this->attributeFactory->create();
+            $statusIdAttribute->setId(SourceItemInterface::STATUS);
+            $statusIdAttribute->setDefaultFrontendLabel(SourceItemInterface::STATUS);
+            $statusIdAttribute->setAttributeCode(SourceItemInterface::STATUS);
+            $statusIdAttribute->setBackendType('int');
+            $statusIdAttribute->setFrontendInput('select');
+            $statusIdAttribute->setSourceModel(StockStatus::class);
+            $this->collection->addItem($statusIdAttribute);
+
+            /** @var \Magento\Eav\Model\Entity\Attribute $quantityAttribute */
+            $quantityAttribute = $this->attributeFactory->create();
+            $quantityAttribute->setId(SourceItemInterface::QUANTITY);
+            $quantityAttribute->setBackendType('decimal');
+            $quantityAttribute->setDefaultFrontendLabel(SourceItemInterface::QUANTITY);
+            $quantityAttribute->setAttributeCode(SourceItemInterface::QUANTITY);
+            $this->collection->addItem($quantityAttribute);
+        }
+
+        return $this->collection;
+    }
+}
diff --git a/app/code/Magento/InventoryImportExport/Model/Export/ColumnProvider.php b/app/code/Magento/InventoryImportExport/Model/Export/ColumnProvider.php
new file mode 100644
index 000000000000..1592f80edabf
--- /dev/null
+++ b/app/code/Magento/InventoryImportExport/Model/Export/ColumnProvider.php
@@ -0,0 +1,50 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+
+namespace Magento\InventoryImportExport\Model\Export;
+
+use Magento\Framework\Data\Collection as AttributeCollection;
+use Magento\InventoryImportExport\Model\Export\ColumnProviderInterface;
+use Magento\ImportExport\Model\Export;
+
+/**
+ * @inheritdoc
+ */
+class ColumnProvider implements ColumnProviderInterface
+{
+    /**
+     * @inheritdoc
+     */
+    public function getHeaders(AttributeCollection $attributeCollection, array $filters): array
+    {
+        $columns = [];
+        foreach ($attributeCollection->getItems() as $item) {
+            $columns[] = $item->getData('id');
+        }
+
+        if (!isset($filters[Export::FILTER_ELEMENT_SKIP])) {
+            return $columns;
+        }
+
+        // remove the skipped from columns
+        $skippedAttributes = array_flip($filters[Export::FILTER_ELEMENT_SKIP]);
+        foreach ($columns as $key => $value) {
+            if (array_key_exists($value, $skippedAttributes) === true) {
+                unset($columns[$key]);
+            }
+        }
+
+        return $columns;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getColumns(AttributeCollection $attributeCollection, array $filters): array
+    {
+        return $this->getHeaders($attributeCollection, $filters);
+    }
+}
diff --git a/app/code/Magento/InventoryImportExport/Model/Export/ColumnProviderInterface.php b/app/code/Magento/InventoryImportExport/Model/Export/ColumnProviderInterface.php
new file mode 100644
index 000000000000..864029e2c784
--- /dev/null
+++ b/app/code/Magento/InventoryImportExport/Model/Export/ColumnProviderInterface.php
@@ -0,0 +1,33 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+
+namespace Magento\InventoryImportExport\Model\Export;
+
+use Magento\Framework\Data\Collection as AttributeCollection;
+
+/**
+ * @api
+ */
+interface ColumnProviderInterface
+{
+    /**
+     * Returns header names for exported file
+     *
+     * @param AttributeCollection $attributeCollection
+     * @param array $filters
+     * @return array
+     */
+    public function getHeaders(AttributeCollection $attributeCollection, array $filters): array;
+
+    /**
+     * Returns column names for Collection Select
+     *
+     * @param AttributeCollection $attributeCollection
+     * @param array $filters
+     * @return array
+     */
+    public function getColumns(AttributeCollection $attributeCollection, array $filters): array;
+}
diff --git a/app/code/Magento/InventoryImportExport/Model/Export/Filter/IntFilter.php b/app/code/Magento/InventoryImportExport/Model/Export/Filter/IntFilter.php
new file mode 100644
index 000000000000..4ec23a53eb0d
--- /dev/null
+++ b/app/code/Magento/InventoryImportExport/Model/Export/Filter/IntFilter.php
@@ -0,0 +1,42 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+
+namespace Magento\InventoryImportExport\Model\Export\Filter;
+
+use Magento\Inventory\Model\ResourceModel\SourceItem\Collection;
+use Magento\InventoryImportExport\Model\Export\FilterProcessorInterface;
+
+/**
+ * @inheritdoc
+ */
+class IntFilter implements FilterProcessorInterface
+{
+    /**
+     * @param Collection $collection
+     * @param string $columnName
+     * @param array|string $value
+     * @return void
+     */
+    public function process(Collection $collection, $columnName, $value)
+    {
+        if (is_array($value)) {
+            $from = $value[0] ?? null;
+            $to = $value[1] ?? null;
+
+            if (is_numeric($from) && !empty($from)) {
+                $collection->addFieldToFilter($columnName, ['from' => $from]);
+            }
+
+            if (is_numeric($to) && !empty($to)) {
+                $collection->addFieldToFilter($columnName, ['to' => $to]);
+            }
+
+            return;
+        }
+
+        $collection->addFieldToFilter($columnName, ['eq' => $value]);
+    }
+}
diff --git a/app/code/Magento/InventoryImportExport/Model/Export/Filter/VarcharFilter.php b/app/code/Magento/InventoryImportExport/Model/Export/Filter/VarcharFilter.php
new file mode 100644
index 000000000000..e23ad36639c9
--- /dev/null
+++ b/app/code/Magento/InventoryImportExport/Model/Export/Filter/VarcharFilter.php
@@ -0,0 +1,27 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+
+namespace Magento\InventoryImportExport\Model\Export\Filter;
+
+use Magento\Inventory\Model\ResourceModel\SourceItem\Collection;
+use Magento\InventoryImportExport\Model\Export\FilterProcessorInterface;
+
+/**
+ * @inheritdoc
+ */
+class VarcharFilter implements FilterProcessorInterface
+{
+    /**
+     * @param Collection $collection
+     * @param string $columnName
+     * @param array|string $value
+     * @return void
+     */
+    public function process(Collection $collection, $columnName, $value)
+    {
+        $collection->addFieldToFilter($columnName, ['like' => '%' . $value . '%']);
+    }
+}
diff --git a/app/code/Magento/InventoryImportExport/Model/Export/FilterProcessorAggregator.php b/app/code/Magento/InventoryImportExport/Model/Export/FilterProcessorAggregator.php
new file mode 100644
index 000000000000..a7e999f4ef77
--- /dev/null
+++ b/app/code/Magento/InventoryImportExport/Model/Export/FilterProcessorAggregator.php
@@ -0,0 +1,58 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+
+namespace Magento\InventoryImportExport\Model\Export;
+
+use Magento\Framework\Exception\LocalizedException;
+use Magento\Inventory\Model\ResourceModel\SourceItem\Collection;
+use Magento\InventoryImportExport\Model\Export\FilterProcessorInterface;
+
+/**
+ * @api
+ */
+class FilterProcessorAggregator
+{
+    /**
+     * @var FilterProcessorInterface[]
+     */
+    private $handler;
+
+    /**
+     * @param FilterProcessorInterface[] $handler
+     * @throws LocalizedException
+     */
+    public function __construct(array $handler = [])
+    {
+        foreach ($handler as $filterProcessor) {
+            if (!($filterProcessor instanceof FilterProcessorInterface)) {
+                throw new LocalizedException(__(
+                    'Filter handler must be instance of "%interface"',
+                    ['interface' => FilterProcessorInterface::class]
+                ));
+            }
+        }
+
+        $this->handler = $handler;
+    }
+
+    /**
+     * @param string $type
+     * @param Collection $collection
+     * @param string $columnName
+     * @param string|array $value
+     * @throws LocalizedException
+     */
+    public function process($type, Collection $collection, $columnName, $value)
+    {
+        if (!isset($this->handler[$type])) {
+            throw new LocalizedException(__(
+                'No filter processor for "%type" given.',
+                ['type' => $type]
+            ));
+        }
+        $this->handler[$type]->process($collection, $columnName, $value);
+    }
+}
diff --git a/app/code/Magento/InventoryImportExport/Model/Export/FilterProcessorInterface.php b/app/code/Magento/InventoryImportExport/Model/Export/FilterProcessorInterface.php
new file mode 100644
index 000000000000..a2081ede8441
--- /dev/null
+++ b/app/code/Magento/InventoryImportExport/Model/Export/FilterProcessorInterface.php
@@ -0,0 +1,27 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+
+namespace Magento\InventoryImportExport\Model\Export;
+
+use Magento\Inventory\Model\ResourceModel\SourceItem\Collection;
+
+/**
+ * @api
+ */
+interface FilterProcessorInterface
+{
+    /**
+     * Filter Processor Interface is used as an Extension Point for each Attribute Data Type (Backend Type)
+     * to process filtering applied from Export Grid UI
+     * to all attributes of Entity being exported
+     *
+     * @param Collection $collection
+     * @param string $columnName
+     * @param array|string $value
+     * @return void
+     */
+    public function process(Collection $collection, $columnName, $value);
+}
diff --git a/app/code/Magento/InventoryImportExport/Model/Export/Source/StockStatus.php b/app/code/Magento/InventoryImportExport/Model/Export/Source/StockStatus.php
new file mode 100644
index 000000000000..247faa52f1b6
--- /dev/null
+++ b/app/code/Magento/InventoryImportExport/Model/Export/Source/StockStatus.php
@@ -0,0 +1,40 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+
+namespace Magento\InventoryImportExport\Model\Export\Source;
+
+use Magento\Eav\Model\Entity\Attribute\Source\AbstractSource;
+use Magento\Inventory\Model\OptionSource\SourceItemStatus;
+
+/**
+ * @inheritdoc
+ */
+class StockStatus extends AbstractSource
+{
+    /**
+     * @var SourceItemStatus
+     */
+    private $sourceItemStatus;
+
+    /**
+     * @param SourceItemStatus $sourceItemStatus
+     */
+    public function __construct(
+        SourceItemStatus $sourceItemStatus
+    ) {
+        $this->sourceItemStatus = $sourceItemStatus;
+    }
+
+    /**
+     * Retrieve All options
+     *
+     * @return array
+     */
+    public function getAllOptions()
+    {
+        return $this->sourceItemStatus->toOptionArray();
+    }
+}
diff --git a/app/code/Magento/InventoryImportExport/Model/Export/SourceItemCollectionFactory.php b/app/code/Magento/InventoryImportExport/Model/Export/SourceItemCollectionFactory.php
new file mode 100644
index 000000000000..154b6ed4d1c6
--- /dev/null
+++ b/app/code/Magento/InventoryImportExport/Model/Export/SourceItemCollectionFactory.php
@@ -0,0 +1,100 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+
+namespace Magento\InventoryImportExport\Model\Export;
+
+use Magento\Framework\Data\Collection as AttributeCollection;
+use Magento\Framework\Exception\LocalizedException;
+use Magento\Framework\ObjectManagerInterface;
+use Magento\Inventory\Model\ResourceModel\SourceItem\Collection;
+use Magento\InventoryImportExport\Model\Export\ColumnProviderInterface;
+use Magento\InventoryImportExport\Model\Export\SourceItemCollectionFactoryInterface;
+use Magento\ImportExport\Model\Export;
+
+/**
+ * @inheritdoc
+ */
+class SourceItemCollectionFactory implements SourceItemCollectionFactoryInterface
+{
+    /**
+     * @var ObjectManagerInterface
+     */
+    private $objectManager;
+
+    /**
+     * @var FilterProcessorAggregator
+     */
+    private $filterProcessor;
+
+    /**
+     * @var ColumnProviderInterface
+     */
+    private $columnProvider;
+
+    /**
+     * @param ObjectManagerInterface $objectManager
+     * @param FilterProcessorAggregator $filterProcessor
+     * @param ColumnProviderInterface $columnProvider
+     */
+    public function __construct(
+        ObjectManagerInterface $objectManager,
+        FilterProcessorAggregator $filterProcessor,
+        ColumnProviderInterface $columnProvider
+    ) {
+        $this->objectManager = $objectManager;
+        $this->filterProcessor = $filterProcessor;
+        $this->columnProvider = $columnProvider;
+    }
+
+    /**
+     * @param AttributeCollection $attributeCollection
+     * @param array $filters
+     * @return Collection
+     * @throws LocalizedException
+     */
+    public function create(AttributeCollection $attributeCollection, array $filters): Collection
+    {
+        /** @var Collection $collection */
+        $collection = $this->objectManager->create(Collection::class);
+        $collection->addFieldToSelect($this->columnProvider->getColumns($attributeCollection, $filters));
+
+        foreach ($this->retrieveFilterData($filters) as $columnName => $value) {
+            $attributeDefinition = $attributeCollection->getItemById($columnName);
+            if (!$attributeDefinition) {
+                throw new LocalizedException(__(
+                    'Given column name "%columnName" is not present in collection.',
+                    ['columnName' => $columnName]
+                ));
+            }
+
+            $type = $attributeDefinition->getData('backend_type');
+            if (!$type) {
+                throw new LocalizedException(__(
+                    'There is no backend type specified for column "%columnName".',
+                    ['columnName' => $columnName]
+                ));
+            }
+
+            $this->filterProcessor->process($type, $collection, $columnName, $value);
+        }
+
+        return $collection;
+    }
+
+    /**
+     * @param array $filters
+     * @return array
+     */
+    private function retrieveFilterData(array $filters)
+    {
+        return array_filter(
+            $filters[Export::FILTER_ELEMENT_GROUP] ?? [],
+            function ($value) {
+                return $value !== '';
+            }
+        );
+    }
+}
diff --git a/app/code/Magento/InventoryImportExport/Model/Export/SourceItemCollectionFactoryInterface.php b/app/code/Magento/InventoryImportExport/Model/Export/SourceItemCollectionFactoryInterface.php
new file mode 100644
index 000000000000..a65bedfeb0e9
--- /dev/null
+++ b/app/code/Magento/InventoryImportExport/Model/Export/SourceItemCollectionFactoryInterface.php
@@ -0,0 +1,27 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+
+namespace Magento\InventoryImportExport\Model\Export;
+
+use Magento\Framework\Exception\LocalizedException;
+use Magento\Inventory\Model\ResourceModel\SourceItem\Collection;
+use Magento\Framework\Data\Collection as AttributeCollection;
+
+/**
+ * @api
+ */
+interface SourceItemCollectionFactoryInterface
+{
+    /**
+     * SourceItemCollection is used to gather all the data (with filters applied) which need to be exported
+     *
+     * @param AttributeCollection $attributeCollection
+     * @param array $filters
+     * @return Collection
+     * @throws LocalizedException
+     */
+    public function create(AttributeCollection $attributeCollection, array $filters): Collection;
+}
diff --git a/app/code/Magento/InventoryImportExport/Model/Export/Sources.php b/app/code/Magento/InventoryImportExport/Model/Export/Sources.php
new file mode 100644
index 000000000000..e900c193ed9a
--- /dev/null
+++ b/app/code/Magento/InventoryImportExport/Model/Export/Sources.php
@@ -0,0 +1,131 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+
+namespace Magento\InventoryImportExport\Model\Export;
+
+use Exception;
+use Magento\Framework\App\Config\ScopeConfigInterface;
+use Magento\ImportExport\Model\Export\Factory as ExportFactory;
+use Magento\ImportExport\Model\Export\AbstractEntity;
+use Magento\Inventory\Model\ResourceModel\SourceItem;
+use Magento\Inventory\Model\ResourceModel\SourceItem\Collection as SourceItemCollection;
+use Magento\InventoryImportExport\Model\Export\SourceItemCollectionFactoryInterface;
+use Magento\InventoryImportExport\Model\Export\ColumnProviderInterface;
+use Magento\Store\Model\StoreManagerInterface;
+use Magento\ImportExport\Model\ResourceModel\CollectionByPagesIteratorFactory;
+
+/**
+ * @inheritdoc
+ */
+class Sources extends AbstractEntity
+{
+    /**
+     * @var AttributeCollectionProvider
+     */
+    private $attributeCollectionProvider;
+
+    /**
+     * @var SourceItemCollectionFactoryInterface
+     */
+    private $sourceItemCollectionFactory;
+
+    /**
+     * @var ColumnProviderInterface
+     */
+    private $columnProvider;
+
+    /**
+     * @param ScopeConfigInterface $scopeConfig
+     * @param StoreManagerInterface $storeManager
+     * @param ExportFactory $collectionFactory
+     * @param CollectionByPagesIteratorFactory $resourceColFactory
+     * @param AttributeCollectionProvider $attributeCollectionProvider
+     * @param SourceItemCollectionFactoryInterface $sourceItemCollectionFactory
+     * @param ColumnProviderInterface $columnProvider
+     * @param array $data
+     */
+    public function __construct(
+        ScopeConfigInterface $scopeConfig,
+        StoreManagerInterface $storeManager,
+        ExportFactory $collectionFactory,
+        CollectionByPagesIteratorFactory $resourceColFactory,
+        AttributeCollectionProvider $attributeCollectionProvider,
+        SourceItemCollectionFactoryInterface $sourceItemCollectionFactory,
+        ColumnProviderInterface $columnProvider,
+        array $data = []
+    ) {
+        $this->attributeCollectionProvider = $attributeCollectionProvider;
+        $this->sourceItemCollectionFactory = $sourceItemCollectionFactory;
+        $this->columnProvider = $columnProvider;
+        parent::__construct($scopeConfig, $storeManager, $collectionFactory, $resourceColFactory, $data);
+    }
+
+    /**
+     * @inheritdoc
+     * @throws \Exception
+     */
+    public function getAttributeCollection()
+    {
+        return $this->attributeCollectionProvider->get();
+    }
+
+    /**
+     * @inheritdoc
+     * @throws Exception
+     */
+    public function export()
+    {
+        $writer = $this->getWriter();
+        $writer->setHeaderCols($this->_getHeaderColumns());
+
+        /** @var SourceItemCollection $collection */
+        $collection = $this->sourceItemCollectionFactory->create(
+            $this->getAttributeCollection(),
+            $this->_parameters
+        );
+
+        foreach ($collection->getData() as $data) {
+            unset($data[SourceItem::ID_FIELD_NAME]);
+            $writer->writeRow($data);
+        }
+
+        return $writer->getContents();
+    }
+
+    /**
+     * @inheritdoc
+     * @throws Exception
+     */
+    protected function _getHeaderColumns()
+    {
+        return $this->columnProvider->getHeaders($this->getAttributeCollection(), $this->_parameters);
+    }
+
+    /**
+     * @inheritdoc
+     * @SuppressWarnings(PHPMD.UnusedFormalParameter)
+     */
+    public function exportItem($item)
+    {
+        // will not implement this method as it is legacy interface
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getEntityTypeCode()
+    {
+        return 'stock_sources';
+    }
+
+    /**
+     * @inheritdoc
+     */
+    protected function _getEntityCollection()
+    {
+        // will not implement this method as it is legacy interface
+    }
+}
diff --git a/app/code/Magento/InventoryImportExport/Model/Import/Command/Append.php b/app/code/Magento/InventoryImportExport/Model/Import/Command/Append.php
new file mode 100644
index 000000000000..48eec176810f
--- /dev/null
+++ b/app/code/Magento/InventoryImportExport/Model/Import/Command/Append.php
@@ -0,0 +1,48 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\InventoryImportExport\Model\Import\Command;
+
+use Magento\InventoryApi\Api\SourceItemsSaveInterface;
+use Magento\InventoryImportExport\Model\Import\SourceItemConvert;
+
+/**
+ * @inheritdoc
+ */
+class Append implements CommandInterface
+{
+    /**
+     * @var SourceItemConvert
+     */
+    private $sourceItemConvert;
+
+    /**
+     * @var SourceItemsSaveInterface
+     */
+    private $sourceItemsSave;
+
+    /**
+     * @param SourceItemConvert $sourceItemConvert
+     * @param SourceItemsSaveInterface $sourceItemsSave
+     */
+    public function __construct(
+        SourceItemConvert $sourceItemConvert,
+        SourceItemsSaveInterface $sourceItemsSave
+    ) {
+        $this->sourceItemConvert = $sourceItemConvert;
+        $this->sourceItemsSave = $sourceItemsSave;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function execute(array $bunch)
+    {
+        $sourceItems = $this->sourceItemConvert->convert($bunch);
+        $this->sourceItemsSave->execute($sourceItems);
+    }
+}
diff --git a/app/code/Magento/InventoryImportExport/Model/Import/Command/CommandInterface.php b/app/code/Magento/InventoryImportExport/Model/Import/Command/CommandInterface.php
new file mode 100644
index 000000000000..7c53e7c42922
--- /dev/null
+++ b/app/code/Magento/InventoryImportExport/Model/Import/Command/CommandInterface.php
@@ -0,0 +1,24 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\InventoryImportExport\Model\Import\Command;
+
+/**
+ * It is extension point to implement import/export functionality (Service Provider Interface - SPI)
+ *
+ * @api
+ */
+interface CommandInterface
+{
+    /**
+     * Executes the current command.
+     *
+     * @param array $bunch
+     * @return void
+     */
+    public function execute(array $bunch);
+}
diff --git a/app/code/Magento/InventoryImportExport/Model/Import/Command/Delete.php b/app/code/Magento/InventoryImportExport/Model/Import/Command/Delete.php
new file mode 100644
index 000000000000..1b652fed25a9
--- /dev/null
+++ b/app/code/Magento/InventoryImportExport/Model/Import/Command/Delete.php
@@ -0,0 +1,49 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\InventoryImportExport\Model\Import\Command;
+
+use Magento\InventoryApi\Api\SourceItemsDeleteInterface;
+use Magento\InventoryImportExport\Model\Import\SourceItemConvert;
+
+/**
+ * @inheritdoc
+ */
+class Delete implements CommandInterface
+{
+
+    /**
+     * @var SourceItemConvert
+     */
+    private $sourceItemConvert;
+
+    /**
+     * @var SourceItemsDeleteInterface
+     */
+    private $sourceItemsDelete;
+
+    /**
+     * @param SourceItemConvert $sourceItemConvert ,
+     * @param SourceItemsDeleteInterface $sourceItemsSave
+     */
+    public function __construct(
+        SourceItemConvert $sourceItemConvert,
+        SourceItemsDeleteInterface $sourceItemsDelete
+    ) {
+        $this->sourceItemConvert = $sourceItemConvert;
+        $this->sourceItemsDelete = $sourceItemsDelete;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function execute(array $bunch)
+    {
+        $sourceItems = $this->sourceItemConvert->convert($bunch);
+        $this->sourceItemsDelete->execute($sourceItems);
+    }
+}
diff --git a/app/code/Magento/InventoryImportExport/Model/Import/Command/Replace.php b/app/code/Magento/InventoryImportExport/Model/Import/Command/Replace.php
new file mode 100644
index 000000000000..43f4fd8b519a
--- /dev/null
+++ b/app/code/Magento/InventoryImportExport/Model/Import/Command/Replace.php
@@ -0,0 +1,58 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\InventoryImportExport\Model\Import\Command;
+
+use Magento\InventoryApi\Api\SourceItemsDeleteInterface;
+use Magento\InventoryApi\Api\SourceItemsSaveInterface;
+use Magento\InventoryImportExport\Model\Import\SourceItemConvert;
+
+/**
+ * @inheritdoc
+ */
+class Replace implements CommandInterface
+{
+    /**
+     * @var SourceItemConvert
+     */
+    private $sourceItemConvert;
+
+    /**
+     * @var SourceItemsSaveInterface
+     */
+    private $sourceItemsSave;
+
+    /**
+     * @var SourceItemsDeleteInterface
+     */
+    private $sourceItemsDelete;
+
+    /**
+     * @param SourceItemConvert $sourceItemFactory
+     * @param SourceItemsSaveInterface $sourceItemsSave
+     * @param SourceItemsDeleteInterface $sourceItemsDelete
+     */
+    public function __construct(
+        SourceItemConvert $sourceItemConvert,
+        SourceItemsSaveInterface $sourceItemsSave,
+        SourceItemsDeleteInterface $sourceItemsDelete
+    ) {
+        $this->sourceItemConvert = $sourceItemConvert;
+        $this->sourceItemsSave = $sourceItemsSave;
+        $this->sourceItemsDelete = $sourceItemsDelete;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function execute(array $bunch)
+    {
+        $sourceItems = $this->sourceItemConvert->convert($bunch);
+        $this->sourceItemsDelete->execute($sourceItems);
+        $this->sourceItemsSave->execute($sourceItems);
+    }
+}
diff --git a/app/code/Magento/InventoryImportExport/Model/Import/Serializer/Json.php b/app/code/Magento/InventoryImportExport/Model/Import/Serializer/Json.php
new file mode 100644
index 000000000000..37bbae397a35
--- /dev/null
+++ b/app/code/Magento/InventoryImportExport/Model/Import/Serializer/Json.php
@@ -0,0 +1,83 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\InventoryImportExport\Model\Import\Serializer;
+
+use Magento\Framework\Serialize\SerializerInterface;
+
+/**
+ * @inheritdoc
+ */
+class Json implements SerializerInterface
+{
+    /**
+     * @var SerializerInterface
+     */
+    private $serializer;
+
+    /**
+     * Json constructor.
+     * @param SerializerInterface $serializer
+     */
+    public function __construct(SerializerInterface $serializer)
+    {
+        $this->serializer = $serializer;
+    }
+
+    /**
+     * Encode the mixed $valueToEncode into the JSON format
+     *
+     * @deprecated 100.2.0 @see \Magento\Framework\Serialize\Serializer\Json
+     * @param mixed $valueToEncode
+     * @return string
+     * @throws \InvalidArgumentException
+     */
+    public function jsonEncode($valueToEncode)
+    {
+        return $this->serialize($valueToEncode);
+    }
+
+    /**
+     * Decodes the given $encodedValue string which is
+     * encoded in the JSON format
+     *
+     * @deprecated 100.2.0 @see \Magento\Framework\Serialize\Serializer\Json
+     * @param string $encodedValue
+     * @return mixed
+     * @throws \InvalidArgumentException
+     */
+    public function jsonDecode($encodedValue)
+    {
+        return $this->unserialize($encodedValue);
+    }
+
+    /**
+     * Serialize data into string
+     *
+     * @param string|int|float|bool|array|null $data
+     * @return string|bool
+     * @throws \InvalidArgumentException
+     * @since 100.2.0
+     */
+    public function serialize($data)
+    {
+        return $this->serializer->serialize($data);
+    }
+
+    /**
+     * Unserialize the given string
+     *
+     * @param string $string
+     * @return string|int|float|bool|array|null
+     * @throws \InvalidArgumentException
+     * @since 100.2.0
+     */
+    public function unserialize($string)
+    {
+        return $this->serializer->unserialize($string);
+    }
+}
diff --git a/app/code/Magento/InventoryImportExport/Model/Import/SourceItemConvert.php b/app/code/Magento/InventoryImportExport/Model/Import/SourceItemConvert.php
new file mode 100644
index 000000000000..b00bbd23a80b
--- /dev/null
+++ b/app/code/Magento/InventoryImportExport/Model/Import/SourceItemConvert.php
@@ -0,0 +1,54 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\InventoryImportExport\Model\Import;
+
+use Magento\InventoryApi\Api\Data\SourceItemInterface;
+use Magento\InventoryApi\Api\Data\SourceItemInterfaceFactory;
+
+class SourceItemConvert
+{
+    /**´
+     * @var SourceItemInterfaceFactory
+     */
+    private $sourceItemFactory;
+
+    /**
+     * @param SourceItemInterfaceFactory $sourceItemFactory
+     */
+    public function __construct(SourceItemInterfaceFactory $sourceItemFactory)
+    {
+        $this->sourceItemFactory = $sourceItemFactory;
+    }
+
+    /**
+     * Converts a data in sourceItem list.
+     * @param array $bunch
+     * @return SourceItemInterface[]
+     */
+    public function convert(array $bunch): array
+    {
+        $sourceItems = [];
+        foreach ($bunch as $rowData) {
+            /** @var SourceItemInterface $sourceItem */
+            $sourceItem = $this->sourceItemFactory->create();
+            $sourceItem->setSourceId($rowData[Sources::COL_SOURCE]);
+            $sourceItem->setSku($rowData[Sources::COL_SKU]);
+            $sourceItem->setQuantity($rowData[Sources::COL_QTY]);
+
+            $status = (int)$rowData[Sources::COL_QTY] > 0;
+            if (isset($rowData[Sources::COL_STATUS])) {
+                $status = (int)$rowData[Sources::COL_STATUS];
+            }
+            $sourceItem->setStatus($status);
+
+            $sourceItems[] = $sourceItem;
+        }
+
+        return $sourceItems;
+    }
+}
diff --git a/app/code/Magento/InventoryImportExport/Model/Import/Sources.php b/app/code/Magento/InventoryImportExport/Model/Import/Sources.php
new file mode 100644
index 000000000000..06e820ed76f0
--- /dev/null
+++ b/app/code/Magento/InventoryImportExport/Model/Import/Sources.php
@@ -0,0 +1,145 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\InventoryImportExport\Model\Import;
+
+use Magento\Framework\Exception\LocalizedException;
+use Magento\ImportExport\Helper\Data as DataHelper;
+use Magento\ImportExport\Model\Import\Entity\AbstractEntity;
+use Magento\ImportExport\Model\Import\ErrorProcessing\ProcessingErrorAggregatorInterface;
+use Magento\ImportExport\Model\ResourceModel\Helper as ResourceHelper;
+use Magento\ImportExport\Model\ResourceModel\Import\Data as ImportData;
+use Magento\InventoryImportExport\Model\Import\Command\CommandInterface;
+use Magento\InventoryImportExport\Model\Import\Serializer\Json;
+use Magento\InventoryImportExport\Model\Import\Validator\ValidatorInterface;
+
+/**
+ * @inheritdoc
+ */
+class Sources extends AbstractEntity
+{
+    /**
+     * Column names for import file
+     */
+    const COL_SKU = 'sku';
+    const COL_SOURCE = 'source';
+    const COL_QTY = 'qty';
+    const COL_STATUS = 'status';
+
+    /**
+     * @var Json
+     */
+    protected $jsonHelper;
+
+    /**
+     * @var ValidatorInterface
+     */
+    private $validator;
+
+    /**
+     * @var CommandInterface[]
+     */
+    private $commands = [];
+
+    /**
+     * @param Json $jsonHelper
+     * @param ProcessingErrorAggregatorInterface $errorAggregator
+     * @param ResourceHelper $resourceHelper
+     * @param DataHelper $dataHelper
+     * @param ImportData $importData
+     * @param ValidatorInterface $validator
+     * @param array $commands
+     * @throws LocalizedException
+     */
+    public function __construct(
+        Json $jsonHelper,
+        ProcessingErrorAggregatorInterface $errorAggregator,
+        ResourceHelper $resourceHelper,
+        DataHelper $dataHelper,
+        ImportData $importData,
+        ValidatorInterface $validator,
+        array $commands = []
+    ) {
+        $this->jsonHelper = $jsonHelper;
+        $this->errorAggregator = $errorAggregator;
+        $this->_resourceHelper = $resourceHelper;
+        $this->_importExportData = $dataHelper;
+        $this->_dataSourceModel = $importData;
+        $this->validator = $validator;
+
+        foreach ($commands as $command) {
+            if (!$command instanceof CommandInterface) {
+                throw new LocalizedException(
+                    __('Source Import Commands must implement %interface.', ['interface' => CommandInterface::class])
+                );
+            }
+        }
+        $this->commands = $commands;
+    }
+
+    /**
+     * Import data rows.
+     * @return boolean
+     * @throws LocalizedException
+     */
+    protected function _importData()
+    {
+        $command = $this->getCommandByBehavior($this->getBehavior());
+        while ($bunch = $this->_dataSourceModel->getNextBunch()) {
+            $command->execute($bunch);
+        }
+
+        return true;
+    }
+
+    /**
+     * @param string $behavior
+     * @return CommandInterface
+     * @throws LocalizedException
+     */
+    private function getCommandByBehavior($behavior)
+    {
+        if (!isset($this->commands[$behavior])) {
+            throw new LocalizedException(
+                __('There is no command registered for behavior "%behavior".', ['behavior' => $behavior])
+            );
+        }
+
+        return $this->commands[$behavior];
+    }
+
+    /**
+     * EAV entity type code getter.
+     *
+     * @return string
+     */
+    public function getEntityTypeCode()
+    {
+        return 'stock_sources';
+    }
+
+    /**
+     * Validate data row.
+     *
+     * @param array $rowData
+     * @param int $rowNum
+     * @return boolean
+     */
+    public function validateRow(array $rowData, $rowNum)
+    {
+        $result = $this->validator->validate($rowData, $rowNum);
+        if ($result->isValid()) {
+            return true;
+        }
+
+        foreach ($result->getErrors() as $error) {
+            $this->addRowError($error, $rowNum);
+        }
+
+        return false;
+    }
+}
diff --git a/app/code/Magento/InventoryImportExport/Model/Import/Validator/QtyValidator.php b/app/code/Magento/InventoryImportExport/Model/Import/Validator/QtyValidator.php
new file mode 100644
index 000000000000..5a5ca3ee6881
--- /dev/null
+++ b/app/code/Magento/InventoryImportExport/Model/Import/Validator/QtyValidator.php
@@ -0,0 +1,46 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\InventoryImportExport\Model\Import\Validator;
+
+use Magento\Framework\Exception\LocalizedException;
+use Magento\Framework\Validation\ValidationResultFactory;
+use Magento\InventoryImportExport\Model\Import\Sources;
+
+/**
+ * Extension point for row validation
+ */
+class QtyValidator implements ValidatorInterface
+{
+    /**
+     * @var ValidationResultFactory
+     */
+    private $validationResultFactory;
+
+    /**
+     * @param ValidationResultFactory $validationResultFactory
+     * @throws LocalizedException
+     */
+    public function __construct(ValidationResultFactory $validationResultFactory)
+    {
+        $this->validationResultFactory = $validationResultFactory;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function validate(array $rowData, int $rowNumber)
+    {
+        $errors = [];
+
+        if (!isset($rowData[Sources::COL_QTY])) {
+            $errors[] = __('Missing required column "%column"', ['column' => Sources::COL_QTY]);
+        }
+
+        return $this->validationResultFactory->create(['errors' => $errors]);
+    }
+}
diff --git a/app/code/Magento/InventoryImportExport/Model/Import/Validator/SkuValidator.php b/app/code/Magento/InventoryImportExport/Model/Import/Validator/SkuValidator.php
new file mode 100644
index 000000000000..db7c06d52ffb
--- /dev/null
+++ b/app/code/Magento/InventoryImportExport/Model/Import/Validator/SkuValidator.php
@@ -0,0 +1,46 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\InventoryImportExport\Model\Import\Validator;
+
+use Magento\Framework\Exception\LocalizedException;
+use Magento\Framework\Validation\ValidationResultFactory;
+use Magento\InventoryImportExport\Model\Import\Sources;
+
+/**
+ * Extension point for row validation
+ */
+class SkuValidator implements ValidatorInterface
+{
+    /**
+     * @var ValidationResultFactory
+     */
+    private $validationResultFactory;
+
+    /**
+     * @param ValidationResultFactory $validationResultFactory
+     * @throws LocalizedException
+     */
+    public function __construct(ValidationResultFactory $validationResultFactory)
+    {
+        $this->validationResultFactory = $validationResultFactory;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function validate(array $rowData, int $rowNumber)
+    {
+        $errors = [];
+
+        if (!isset($rowData[Sources::COL_SKU])) {
+            $errors[] = __('Missing required column "%column"', ['column' => Sources::COL_SKU]);
+        }
+
+        return $this->validationResultFactory->create(['errors' => $errors]);
+    }
+}
diff --git a/app/code/Magento/InventoryImportExport/Model/Import/Validator/SourceValidator.php b/app/code/Magento/InventoryImportExport/Model/Import/Validator/SourceValidator.php
new file mode 100644
index 000000000000..94e6f3b8c9fb
--- /dev/null
+++ b/app/code/Magento/InventoryImportExport/Model/Import/Validator/SourceValidator.php
@@ -0,0 +1,87 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\InventoryImportExport\Model\Import\Validator;
+
+use Magento\Framework\Validation\ValidationResultFactory;
+use Magento\InventoryApi\Api\SourceRepositoryInterface;
+use Magento\InventoryImportExport\Model\Import\Sources;
+
+/**
+ * Extension point for source validation
+ */
+class SourceValidator implements ValidatorInterface
+{
+    /**
+     * @var ValidationResultFactory
+     */
+    private $validationResultFactory;
+
+    /**
+     * @var SourceRepositoryInterface
+     */
+    private $sourceRepository;
+
+    /**
+     * @var array
+     */
+    private $sourceIds = [];
+
+    /**
+     * @param ValidationResultFactory $validationResultFactory
+     * @param SourceRepositoryInterface $sourceRepository
+     */
+    public function __construct(
+        ValidationResultFactory $validationResultFactory,
+        SourceRepositoryInterface $sourceRepository
+    ) {
+        $this->validationResultFactory = $validationResultFactory;
+        $this->sourceRepository = $sourceRepository;
+        $this->loadSourceIds();
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function validate(array $rowData, int $rowNumber)
+    {
+        $errors = [];
+
+        if (!isset($rowData[Sources::COL_SOURCE])) {
+            $errors[] = __('Missing required column "%column"', ['column' => Sources::COL_SOURCE]);
+        } elseif (!$this->isExistingSource($rowData[Sources::COL_SOURCE])) {
+            $errors[] = __('Source id "%id" does not exists', ['id' => $rowData[Sources::COL_SOURCE]]);
+        }
+
+        return $this->validationResultFactory->create(['errors' => $errors]);
+    }
+
+    /**
+     * Returns exits already the source in sources.
+     *
+     * @param int $sourceId
+     * @return bool
+     */
+    private function isExistingSource($sourceId): bool
+    {
+        return isset($this->sourceIds[$sourceId]);
+    }
+
+    /**
+     * Loads all existing source ids
+     *
+     * @return void
+     */
+    private function loadSourceIds()
+    {
+        $sources = $this->sourceRepository->getList();
+        foreach ($sources->getItems() as $source) {
+            $sourceId = $source->getSourceId();
+            $this->sourceIds[$sourceId] = $sourceId;
+        }
+    }
+}
diff --git a/app/code/Magento/InventoryImportExport/Model/Import/Validator/ValidatorChain.php b/app/code/Magento/InventoryImportExport/Model/Import/Validator/ValidatorChain.php
new file mode 100644
index 000000000000..595badc05b11
--- /dev/null
+++ b/app/code/Magento/InventoryImportExport/Model/Import/Validator/ValidatorChain.php
@@ -0,0 +1,66 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\InventoryImportExport\Model\Import\Validator;
+
+use Magento\Framework\Exception\LocalizedException;
+use Magento\Framework\Validation\ValidationResultFactory;
+
+/**
+ * @inheritdoc
+ */
+class ValidatorChain implements ValidatorInterface
+{
+    /**
+     * @var ValidationResultFactory
+     */
+    private $validationResultFactory;
+
+    /**
+     * @var ValidatorInterface[]
+     */
+    private $validators;
+
+    /**
+     * @param ValidationResultFactory $validationResultFactory
+     * @param array $validators
+     * @throws LocalizedException
+     */
+    public function __construct(
+        ValidationResultFactory $validationResultFactory,
+        array $validators = []
+    ) {
+        $this->validationResultFactory = $validationResultFactory;
+
+        foreach ($validators as $validator) {
+            if (!$validator instanceof ValidatorInterface) {
+                throw new LocalizedException(
+                    __('Row Validator must implement %interface.', ['interface' => ValidatorInterface::class])
+                );
+            }
+        }
+        $this->validators = $validators;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function validate(array $rowData, int $rowNumber)
+    {
+        /* the inner empty array covers cases when no loops were made */
+        $errors = [[]];
+        foreach ($this->validators as $validator) {
+            $validationResult = $validator->validate($rowData, $rowNumber);
+
+            if (!$validationResult->isValid()) {
+                $errors[] = $validationResult->getErrors();
+            }
+        }
+
+        return $this->validationResultFactory->create(['errors' => array_merge(...$errors)]);
+    }
+}
diff --git a/app/code/Magento/InventoryImportExport/Model/Import/Validator/ValidatorInterface.php b/app/code/Magento/InventoryImportExport/Model/Import/Validator/ValidatorInterface.php
new file mode 100644
index 000000000000..b64c44d43ef2
--- /dev/null
+++ b/app/code/Magento/InventoryImportExport/Model/Import/Validator/ValidatorInterface.php
@@ -0,0 +1,25 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\InventoryImportExport\Model\Import\Validator;
+
+use Magento\Framework\Validation\ValidationResult;
+
+/**
+ * Extension point for row validation (Service Provider Interface - SPI)
+ *
+ * @api
+ */
+interface ValidatorInterface
+{
+    /**
+     * @param array $rowData
+     * @param int $rowNumber
+     * @return ValidationResult
+     */
+    public function validate(array $rowData, int $rowNumber);
+}
diff --git a/app/code/Magento/InventoryImportExport/README.md b/app/code/Magento/InventoryImportExport/README.md
new file mode 100644
index 000000000000..5b90238246a4
--- /dev/null
+++ b/app/code/Magento/InventoryImportExport/README.md
@@ -0,0 +1,6 @@
+# InventoryCatalog
+
+**InventoryCatalog** provides implementation for bridge between **Inventory** and **Catalog**.
+This is dedicated module which add logic to Default Role of the Source on installations with single source/stock. 
+See [concept documentation](https://github.com/magento-engcom/magento2/wiki/Technical-Vision.-Catalog-Inventory)
+for further information.
diff --git a/app/code/Magento/InventoryImportExport/Test/Integration/Model/Export/SourcesTest.php b/app/code/Magento/InventoryImportExport/Test/Integration/Model/Export/SourcesTest.php
new file mode 100644
index 000000000000..c46d7acd1b6c
--- /dev/null
+++ b/app/code/Magento/InventoryImportExport/Test/Integration/Model/Export/SourcesTest.php
@@ -0,0 +1,168 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\Inventory\Test\Integration\Model\Export;
+
+use Magento\ImportExport\Model\Export;
+use Magento\ImportExport\Model\Export\Adapter\Csv;
+use Magento\InventoryImportExport\Model\Export\Sources;
+use Magento\TestFramework\Helper\Bootstrap;
+use PHPUnit\Framework\TestCase;
+
+/**
+ * TODO: fixture via composer
+ */
+class SourcesTest extends TestCase
+{
+    /**
+     * @var Sources
+     */
+    private $exporter;
+
+    /**
+     * @var string
+     */
+    private $exportFilePath;
+
+    protected function setUp()
+    {
+        $sandboxDir = Bootstrap::getInstance()->getBootstrap()->getApplication()->getTempDir();
+        $this->exportFilePath = implode(DIRECTORY_SEPARATOR, [
+            $sandboxDir,
+            'var',
+            uniqid('test-export_', false) . '.csv'
+        ]);
+
+        $this->exporter = Bootstrap::getObjectManager()->create(Sources::class);
+        $this->exporter->setWriter(Bootstrap::getObjectManager()->create(
+            Csv::class,
+            ['destination' => $this->exportFilePath]
+        ));
+    }
+
+    protected function tearDown()
+    {
+        unlink($this->exportFilePath);
+    }
+
+    /**
+     * @magentoDataFixture ../../../../app/code/Magento/InventoryApi/Test/_files/products.php
+     * @magentoDataFixture ../../../../app/code/Magento/InventoryApi/Test/_files/sources.php
+     * @magentoDataFixture ../../../../app/code/Magento/InventoryApi/Test/_files/stocks.php
+     * @magentoDataFixture ../../../../app/code/Magento/InventoryApi/Test/_files/source_items.php
+     * @magentoDataFixture ../../../../app/code/Magento/InventoryApi/Test/_files/stock_source_link.php
+     */
+    public function testExportWithoutAnyFiltering()
+    {
+        $this->exporter->setParameters([]);
+        $this->exporter->export();
+
+        $this->assertEquals(
+            file_get_contents(implode(DIRECTORY_SEPARATOR, [__DIR__, '_files', 'export_full.csv'])),
+            file_get_contents($this->exportFilePath)
+        );
+    }
+
+    /**
+     * @magentoDataFixture ../../../../app/code/Magento/InventoryApi/Test/_files/products.php
+     * @magentoDataFixture ../../../../app/code/Magento/InventoryApi/Test/_files/sources.php
+     * @magentoDataFixture ../../../../app/code/Magento/InventoryApi/Test/_files/stocks.php
+     * @magentoDataFixture ../../../../app/code/Magento/InventoryApi/Test/_files/source_items.php
+     * @magentoDataFixture ../../../../app/code/Magento/InventoryApi/Test/_files/stock_source_link.php
+     */
+    public function testExportWithSkuFilter()
+    {
+        $this->exporter->setParameters([
+            Export::FILTER_ELEMENT_GROUP => [
+                'sku' => 'SKU-1'
+            ]
+        ]);
+        $this->exporter->export();
+
+        $this->assertEquals(
+            file_get_contents(implode(DIRECTORY_SEPARATOR, [__DIR__, '_files', 'export_filtered_by_sku.csv'])),
+            file_get_contents($this->exportFilePath)
+        );
+    }
+
+    /**
+     * @magentoDataFixture ../../../../app/code/Magento/InventoryApi/Test/_files/products.php
+     * @magentoDataFixture ../../../../app/code/Magento/InventoryApi/Test/_files/sources.php
+     * @magentoDataFixture ../../../../app/code/Magento/InventoryApi/Test/_files/stocks.php
+     * @magentoDataFixture ../../../../app/code/Magento/InventoryApi/Test/_files/source_items.php
+     * @magentoDataFixture ../../../../app/code/Magento/InventoryApi/Test/_files/stock_source_link.php
+     */
+    public function testExportWithSkuFilterByLikeQuery()
+    {
+        $this->exporter->setParameters([
+            Export::FILTER_ELEMENT_GROUP => [
+                'sku' => 'U-1'
+            ]
+        ]);
+        $this->exporter->export();
+
+        $this->assertEquals(
+            file_get_contents(implode(DIRECTORY_SEPARATOR, [__DIR__, '_files', 'export_filtered_by_sku.csv'])),
+            file_get_contents($this->exportFilePath)
+        );
+    }
+
+    /**
+     * @magentoDataFixture ../../../../app/code/Magento/InventoryApi/Test/_files/products.php
+     * @magentoDataFixture ../../../../app/code/Magento/InventoryApi/Test/_files/sources.php
+     * @magentoDataFixture ../../../../app/code/Magento/InventoryApi/Test/_files/stocks.php
+     * @magentoDataFixture ../../../../app/code/Magento/InventoryApi/Test/_files/source_items.php
+     * @magentoDataFixture ../../../../app/code/Magento/InventoryApi/Test/_files/stock_source_link.php
+     */
+    public function testExportWithSourceFilter()
+    {
+        $this->exporter->setParameters([
+            Export::FILTER_ELEMENT_GROUP => [
+                'source_id' => [
+                    22,
+                    62
+                ]
+            ]
+        ]);
+        $this->exporter->export();
+
+        $this->assertEquals(
+            file_get_contents(implode(DIRECTORY_SEPARATOR, [__DIR__, '_files', 'export_filtered_by_source.csv'])),
+            file_get_contents($this->exportFilePath)
+        );
+    }
+
+    /**
+     * @magentoDataFixture ../../../../app/code/Magento/InventoryApi/Test/_files/products.php
+     * @magentoDataFixture ../../../../app/code/Magento/InventoryApi/Test/_files/sources.php
+     * @magentoDataFixture ../../../../app/code/Magento/InventoryApi/Test/_files/stocks.php
+     * @magentoDataFixture ../../../../app/code/Magento/InventoryApi/Test/_files/source_items.php
+     * @magentoDataFixture ../../../../app/code/Magento/InventoryApi/Test/_files/stock_source_link.php
+     */
+    public function testExportFilteredWithoutStatusColumn()
+    {
+        $this->exporter->setParameters([
+            Export::FILTER_ELEMENT_GROUP => [
+                'sku' => 'SKU-1',
+                'status' => 1
+            ],
+            Export::FILTER_ELEMENT_SKIP => [
+                'status'
+            ]
+        ]);
+        $this->exporter->export();
+
+        $this->assertEquals(
+            file_get_contents(implode(DIRECTORY_SEPARATOR, [
+                __DIR__,
+                '_files',
+                'export_filtered_without_status_column.csv'
+            ])),
+            file_get_contents($this->exportFilePath)
+        );
+    }
+}
diff --git a/app/code/Magento/InventoryImportExport/Test/Integration/Model/Export/_files/export_filtered_by_sku.csv b/app/code/Magento/InventoryImportExport/Test/Integration/Model/Export/_files/export_filtered_by_sku.csv
new file mode 100644
index 000000000000..449aeb78494e
--- /dev/null
+++ b/app/code/Magento/InventoryImportExport/Test/Integration/Model/Export/_files/export_filtered_by_sku.csv
@@ -0,0 +1,5 @@
+source_id,sku,status,quantity
+10,SKU-1,1,5.5000
+20,SKU-1,1,3.0000
+30,SKU-1,0,10.0000
+40,SKU-1,1,10.0000
diff --git a/app/code/Magento/InventoryImportExport/Test/Integration/Model/Export/_files/export_filtered_by_source.csv b/app/code/Magento/InventoryImportExport/Test/Integration/Model/Export/_files/export_filtered_by_source.csv
new file mode 100644
index 000000000000..752c4c8699a2
--- /dev/null
+++ b/app/code/Magento/InventoryImportExport/Test/Integration/Model/Export/_files/export_filtered_by_source.csv
@@ -0,0 +1,4 @@
+source_id,sku,status,quantity
+30,SKU-1,0,10.0000
+40,SKU-1,1,10.0000
+50,SKU-2,1,5.0000
diff --git a/app/code/Magento/InventoryImportExport/Test/Integration/Model/Export/_files/export_filtered_without_status_column.csv b/app/code/Magento/InventoryImportExport/Test/Integration/Model/Export/_files/export_filtered_without_status_column.csv
new file mode 100644
index 000000000000..89cb0643b37c
--- /dev/null
+++ b/app/code/Magento/InventoryImportExport/Test/Integration/Model/Export/_files/export_filtered_without_status_column.csv
@@ -0,0 +1,4 @@
+source_id,sku,quantity
+10,SKU-1,5.5000
+20,SKU-1,3.0000
+40,SKU-1,10.0000
diff --git a/app/code/Magento/InventoryImportExport/Test/Integration/Model/Export/_files/export_full.csv b/app/code/Magento/InventoryImportExport/Test/Integration/Model/Export/_files/export_full.csv
new file mode 100644
index 000000000000..aca33a8fff41
--- /dev/null
+++ b/app/code/Magento/InventoryImportExport/Test/Integration/Model/Export/_files/export_full.csv
@@ -0,0 +1,6 @@
+source_id,sku,status,quantity
+10,SKU-1,1,5.5000
+20,SKU-1,1,3.0000
+30,SKU-1,0,10.0000
+40,SKU-1,1,10.0000
+50,SKU-2,1,5.0000
diff --git a/app/code/Magento/InventoryImportExport/Test/Integration/Model/Import/SourcesTest.php b/app/code/Magento/InventoryImportExport/Test/Integration/Model/Import/SourcesTest.php
new file mode 100644
index 000000000000..e8ed795b0dbf
--- /dev/null
+++ b/app/code/Magento/InventoryImportExport/Test/Integration/Model/Import/SourcesTest.php
@@ -0,0 +1,253 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\Inventory\Test\Integration\Model\Import;
+
+use Magento\Framework\Api\SearchCriteriaBuilder;
+use Magento\ImportExport\Model\Import;
+use Magento\ImportExport\Model\ResourceModel\Import\Data as ImportData;
+use Magento\InventoryApi\Api\Data\SourceItemInterface;
+use Magento\InventoryApi\Api\SourceItemRepositoryInterface;
+use Magento\InventoryImportExport\Model\Import\Sources;
+use Magento\TestFramework\Helper\Bootstrap;
+use PHPUnit\Framework\TestCase;
+
+/**
+ * TODO: fixture via composer
+ */
+class SourcesTest extends TestCase
+{
+    /**
+     * @var Sources
+     */
+    private $importer;
+
+    /**
+     * @var SourceItemRepositoryInterface
+     */
+    private $sourceItemRepository;
+
+    /**
+     * @var SearchCriteriaBuilder
+     */
+    private $searchCriteriaBuilder;
+
+    /**
+     * @var \PHPUnit_Framework_MockObject_MockObject
+     */
+    private $importDataMock;
+
+    protected function setUp()
+    {
+        $this->importDataMock = $this->getMockBuilder(ImportData::class)
+            ->disableOriginalConstructor()
+            ->getMock();
+
+        $this->importer = Bootstrap::getObjectManager()->create(Sources::class, [
+            'importData' => $this->importDataMock
+        ]);
+
+        $this->sourceItemRepository = Bootstrap::getObjectManager()->create(SourceItemRepositoryInterface::class);
+        $this->searchCriteriaBuilder = Bootstrap::getObjectManager()->create(SearchCriteriaBuilder::class);
+    }
+
+    /**
+     * @magentoDataFixture ../../../../app/code/Magento/InventoryApi/Test/_files/sources.php
+     */
+    public function testValidateRowExpectsInvalidRow()
+    {
+        $rowData = $this->buildRowDataArray(880, 'SKU-55', 33, 1);
+        $result = $this->importer->validateRow($rowData, 2);
+        $this->assertNotTrue($result, 'Expect result FALSE as given source ID is not present in database.');
+    }
+
+    /**
+     * @magentoDataFixture ../../../../app/code/Magento/InventoryApi/Test/_files/sources.php
+     */
+    public function testValidateRowExpectsValidRow()
+    {
+        $rowData = $this->buildRowDataArray(20, 'SKU-55', 33, 1);
+        $result = $this->importer->validateRow($rowData, 2);
+        $this->assertTrue($result, 'Expect result TRUE as given data is valid.');
+    }
+
+    /**
+     * @expectedException \Magento\Framework\Exception\LocalizedException
+     */
+    public function testImportDataWithWrongBehavior()
+    {
+        $this->importer->setParameters([
+            'behavior' => 'WrongBehavior'
+        ]);
+
+        $bunch = [
+            $this->buildRowDataArray(10, 'SKU-1', 6.88, 1)
+        ];
+        $this->importDataMock->expects($this->any())
+            ->method('getNextBunch')
+            ->will($this->onConsecutiveCalls($bunch, false));
+
+        $this->importer->importData();
+    }
+
+    /**
+     * @magentoDataFixture ../../../../app/code/Magento/InventoryApi/Test/_files/products.php
+     * @magentoDataFixture ../../../../app/code/Magento/InventoryApi/Test/_files/sources.php
+     * @magentoDataFixture ../../../../app/code/Magento/InventoryApi/Test/_files/stocks.php
+     * @magentoDataFixture ../../../../app/code/Magento/InventoryApi/Test/_files/source_items.php
+     * @magentoDataFixture ../../../../app/code/Magento/InventoryApi/Test/_files/stock_source_link.php
+     */
+    public function testImportDataWithAppendBehavior()
+    {
+        $this->importer->setParameters([
+            'behavior' => Import::BEHAVIOR_APPEND
+        ]);
+
+        $searchCriteria = $this->searchCriteriaBuilder->create();
+        $sourceItems = $this->sourceItemRepository->getList($searchCriteria);
+        $beforeImportData = $this->buildDataArray($sourceItems->getItems());
+
+        $bunch = [
+            $this->buildRowDataArray(10, 'SKU-1', 6.8800, 1),
+            $this->buildRowDataArray(20, 'SKU-1', 5.0000, 1),
+            $this->buildRowDataArray(50, 'SKU-2', 15, 1),
+            $this->buildRowDataArray(10, 'SKU-2', 33, 1),
+        ];
+        $this->importDataMock->expects($this->any())
+            ->method('getNextBunch')
+            ->will($this->onConsecutiveCalls($bunch, false));
+
+        $this->importer->importData();
+
+        $sourceItems = $this->sourceItemRepository->getList($searchCriteria);
+        $expectedData = $this->updateDataArrayByBunch($beforeImportData, $bunch);
+        $afterImportData = $this->buildDataArray($sourceItems->getItems());
+
+        $this->assertEquals($expectedData, $afterImportData);
+    }
+
+    /**
+     * @magentoDataFixture ../../../../app/code/Magento/InventoryApi/Test/_files/products.php
+     * @magentoDataFixture ../../../../app/code/Magento/InventoryApi/Test/_files/sources.php
+     * @magentoDataFixture ../../../../app/code/Magento/InventoryApi/Test/_files/stocks.php
+     * @magentoDataFixture ../../../../app/code/Magento/InventoryApi/Test/_files/source_items.php
+     * @magentoDataFixture ../../../../app/code/Magento/InventoryApi/Test/_files/stock_source_link.php
+     */
+    public function testImportDataWithDelteBehavior()
+    {
+        $this->importer->setParameters([
+            'behavior' => Import::BEHAVIOR_DELETE
+        ]);
+
+        $searchCriteria = $this->searchCriteriaBuilder->create();
+
+        $bunch = [
+            $this->buildRowDataArray(10, 'SKU-1', 6.88, 1),
+            $this->buildRowDataArray(20, 'SKU-1', 5, 1),
+        ];
+        $this->importDataMock->expects($this->any())
+            ->method('getNextBunch')
+            ->will($this->onConsecutiveCalls($bunch, false));
+
+        $this->importer->importData();
+
+        $sourceItems = $this->sourceItemRepository->getList($searchCriteria);
+        $afterImportData = $this->buildDataArray($sourceItems->getItems());
+
+        $this->assertArrayNotHasKey('10-SKU-1', $afterImportData);
+        $this->assertArrayNotHasKey('20-SKU-1', $afterImportData);
+    }
+
+    /**
+     * @magentoDataFixture ../../../../app/code/Magento/InventoryApi/Test/_files/products.php
+     * @magentoDataFixture ../../../../app/code/Magento/InventoryApi/Test/_files/sources.php
+     * @magentoDataFixture ../../../../app/code/Magento/InventoryApi/Test/_files/stocks.php
+     * @magentoDataFixture ../../../../app/code/Magento/InventoryApi/Test/_files/source_items.php
+     * @magentoDataFixture ../../../../app/code/Magento/InventoryApi/Test/_files/stock_source_link.php
+     */
+    public function testImportDataWithReplaceBehavior()
+    {
+        /** @see \Magento\InventoryImportExport\Model\Import\Command\Replace::execute */
+        $this->importer->setParameters([
+            'behavior' => Import::BEHAVIOR_REPLACE
+        ]);
+
+        $bunch = [
+            $this->buildRowDataArray(20, 'SKU-1', 5, 1),
+            $this->buildRowDataArray(50, 'SKU-2', 15, 1),
+        ];
+        $this->importDataMock->expects($this->any())
+            ->method('getNextBunch')
+            ->will($this->onConsecutiveCalls($bunch, false));
+
+        $this->importer->importData();
+
+        $searchCriteria = $this->searchCriteriaBuilder->create();
+
+        $sourceItems = $this->sourceItemRepository->getList($searchCriteria);
+        $afterImportData = $this->buildDataArray($sourceItems->getItems());
+
+        $this->assertArrayHasKey('20-SKU-1', $afterImportData);
+        $this->assertArrayHasKey('50-SKU-2', $afterImportData);
+        $this->assertCount(2, $afterImportData);
+    }
+
+    /**
+     * @param int $sourceID
+     * @param string $sku
+     * @param int $qty
+     * @param int $status
+     * @return array
+     */
+    private function buildRowDataArray($sourceID, $sku, $qty, $status)
+    {
+        return [
+            Sources::COL_SOURCE => $sourceID,
+            Sources::COL_SKU => $sku,
+            Sources::COL_QTY => $qty,
+            Sources::COL_STATUS => $status,
+        ];
+    }
+
+    /**
+     * @param SourceItemInterface[] $sourceItems
+     * @return array
+     */
+    private function buildDataArray(array $sourceItems)
+    {
+        $comparableArray = [];
+        foreach ($sourceItems as $sourceItem) {
+            $key = sprintf('%s-%s', $sourceItem->getSourceId(), $sourceItem->getSku());
+            $comparableArray[$key] = $this->buildRowDataArray(
+                $sourceItem->getSourceId(),
+                $sourceItem->getSku(),
+                $sourceItem->getQuantity(),
+                $sourceItem->getStatus()
+            );
+        }
+        return $comparableArray;
+    }
+
+    /**
+     * @param array $data
+     * @param array $bunch
+     * @return array
+     */
+    private function updateDataArrayByBunch(array $data, array $bunch)
+    {
+        foreach ($bunch as $bunchData) {
+            $key = sprintf('%s-%s', $bunchData[Sources::COL_SOURCE], $bunchData[Sources::COL_SKU]);
+            $data[$key] = $this->buildRowDataArray(
+                $bunchData[Sources::COL_SOURCE],
+                $bunchData[Sources::COL_SKU],
+                number_format($bunchData[Sources::COL_QTY], 4),
+                $bunchData[Sources::COL_STATUS]
+            );
+        }
+        return $data;
+    }
+}
diff --git a/app/code/Magento/InventoryImportExport/Test/Unit/Model/ValidatorChainTest.php b/app/code/Magento/InventoryImportExport/Test/Unit/Model/ValidatorChainTest.php
new file mode 100644
index 000000000000..8879965813fa
--- /dev/null
+++ b/app/code/Magento/InventoryImportExport/Test/Unit/Model/ValidatorChainTest.php
@@ -0,0 +1,125 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\Inventory\Test\Unit\Model;
+
+use Magento\Framework\TestFramework\Unit\Helper\ObjectManager;
+use Magento\Framework\Validation\ValidationResultFactory;
+use Magento\InventoryImportExport\Model\Import\Validator\ValidatorChain;
+use Magento\InventoryImportExport\Model\Import\Validator\ValidatorInterface;
+use PHPUnit\Framework\TestCase;
+
+class ValidatorChainTest extends TestCase
+{
+
+    /**
+     * @var ValidatorInterface|\PHPUnit_Framework_MockObject_MockObject
+     */
+    private $qtyValidator;
+
+    /**
+     * @var ValidatorInterface|\PHPUnit_Framework_MockObject_MockObject
+     */
+    private $skuValidator;
+
+    /**
+     * @var ValidationResultFactory|\PHPUnit_Framework_MockObject_MockObject
+     */
+    private $validationResultFactory;
+
+    /**
+     * @var ValidatorChain
+     */
+    private $validatorChain;
+
+    /**
+     * @inheritdoc
+     */
+    protected function setUp()
+    {
+        $this->validationResultFactory = $this->getMockBuilder(ValidationResultFactory::class)->getMock();
+        $this->qtyValidator = $this->getMockBuilder(ValidatorInterface::class)->getMock();
+        $this->skuValidator = $this->getMockBuilder(ValidatorInterface::class)->getMock();
+    }
+
+    public function testValidateWithOutValidators()
+    {
+        $emptyValidatorResult = $this->createMock(\Magento\Framework\Validation\ValidationResult::class);
+        $this->validationResultFactory->expects($this->once())
+            ->method('create')
+            ->with(['errors' =>[]])
+            ->willReturn($emptyValidatorResult);
+
+        $this->validatorChain = (new ObjectManager($this))->getObject(
+            ValidatorChain::class,
+            [
+                'validationResultFactory' => $this->validationResultFactory,
+                'validators' => []
+            ]
+        );
+
+        $result = $this->validatorChain->validate([], 1);
+        $this->assertEquals($emptyValidatorResult, $result);
+    }
+
+    public function testValidateWithOutErros()
+    {
+        $emptyValidatorResult = $this->createMock(\Magento\Framework\Validation\ValidationResult::class);
+        $emptyValidatorResult->expects($this->once())->method('isValid')
+            ->willReturn(true);
+
+        $this->validationResultFactory->expects($this->once())
+            ->method('create')
+            ->with(['errors' => []])
+            ->willReturn($emptyValidatorResult);
+
+        $this->qtyValidator->method('validate')
+            ->willReturn($emptyValidatorResult);
+
+        $this->validatorChain = (new ObjectManager($this))->getObject(
+            ValidatorChain::class,
+            [
+                'validationResultFactory' => $this->validationResultFactory,
+                'validators' => [$this->qtyValidator]
+            ]
+        );
+
+        $result = $this->validatorChain->validate([], 1);
+        $this->assertEquals($emptyValidatorResult, $result);
+    }
+
+    public function testValidateWithErros()
+    {
+        $validatorResult = $this->createMock(\Magento\Framework\Validation\ValidationResult::class);
+
+        $validatorResult->expects($this->once())->method('isValid')
+            ->willReturn(false);
+
+        $validatorResult->expects($this->once())
+            ->method('getErrors')
+            ->willReturn(['Qty can not negative', 'Additional error']);
+
+        $this->qtyValidator->expects($this->once())->method('validate')
+            ->willReturn($validatorResult);
+
+        $this->validationResultFactory->expects($this->once())
+            ->method('create')
+            ->with(['errors' => ['Qty can not negative', 'Additional error']])
+            ->willReturn($validatorResult);
+
+        $this->validatorChain = (new ObjectManager($this))->getObject(
+            ValidatorChain::class,
+            [
+                'validationResultFactory' => $this->validationResultFactory,
+                'validators' => [$this->qtyValidator]
+            ]
+        );
+
+        $result = $this->validatorChain->validate([-1], 1);
+        $this->assertEquals($validatorResult, $result);
+    }
+}
diff --git a/app/code/Magento/InventoryImportExport/composer.json b/app/code/Magento/InventoryImportExport/composer.json
new file mode 100644
index 000000000000..1f266a415fa6
--- /dev/null
+++ b/app/code/Magento/InventoryImportExport/composer.json
@@ -0,0 +1,28 @@
+{
+    "name": "magento/module-inventory-import-export",
+    "description": "N/A",
+    "require": {
+        "php": "7.0.2|7.0.4|~7.0.6|~7.1.0",
+        "magento/framework": "100.2.*",
+        "magento/module-inventory-api": "100.0.*",
+        "magento/module-backend": "100.2.*",
+        "magento/module-catalog": "100.2.*",
+        "magento/module-directory": "100.2.*",
+        "magento/module-shipping": "100.2.*",
+        "magento/module-ui": "100.2.*"
+    },
+    "type": "magento2-module",
+    "version": "100.0.0-dev",
+    "license": [
+        "OSL-3.0",
+        "AFL-3.0"
+    ],
+    "autoload": {
+        "files": [
+            "registration.php"
+        ],
+        "psr-4": {
+            "Magento\\InventoryImportExport\\": ""
+        }
+    }
+}
diff --git a/app/code/Magento/InventoryImportExport/etc/di.xml b/app/code/Magento/InventoryImportExport/etc/di.xml
new file mode 100644
index 000000000000..9fca572cce16
--- /dev/null
+++ b/app/code/Magento/InventoryImportExport/etc/di.xml
@@ -0,0 +1,44 @@
+<?xml version="1.0"?>
+<!--
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+-->
+<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
+    <!-- Import -->
+    <type name="Magento\InventoryImportExport\Model\Import\Validator\ValidatorChain">
+        <arguments>
+            <argument name="validators" xsi:type="array">
+                <item name="sku" xsi:type="object">Magento\InventoryImportExport\Model\Import\Validator\SkuValidator</item>
+                <item name="source" xsi:type="object">Magento\InventoryImportExport\Model\Import\Validator\SourceValidator</item>
+                <item name="qty" xsi:type="object">Magento\InventoryImportExport\Model\Import\Validator\QtyValidator</item>
+            </argument>
+        </arguments>
+    </type>
+    <type name="Magento\InventoryImportExport\Model\Import\Sources">
+        <arguments>
+            <argument name="jsonHelper" xsi:type="object">Magento\InventoryImportExport\Model\Import\Serializer\Json</argument>
+            <argument name="validator" xsi:type="object">Magento\InventoryImportExport\Model\Import\Validator\ValidatorChain</argument>
+            <argument name="commands" xsi:type="array">
+                <item name="delete" xsi:type="object">Magento\InventoryImportExport\Model\Import\Command\Delete</item>
+                <item name="append" xsi:type="object">Magento\InventoryImportExport\Model\Import\Command\Append</item>
+                <item name="replace" xsi:type="object">Magento\InventoryImportExport\Model\Import\Command\Replace</item>
+            </argument>
+        </arguments>
+    </type>
+
+    <!-- Export -->
+    <preference for="Magento\InventoryImportExport\Model\Export\SourceItemCollectionFactoryInterface" type="Magento\InventoryImportExport\Model\Export\SourceItemCollectionFactory"/>
+    <preference for="Magento\InventoryImportExport\Model\Export\ColumnProviderInterface" type="\Magento\InventoryImportExport\Model\Export\ColumnProvider"/>
+    <type name="Magento\InventoryImportExport\Model\Export\FilterProcessorAggregator">
+        <arguments>
+            <argument name="handler" xsi:type="array">
+                <item name="int" xsi:type="object">Magento\InventoryImportExport\Model\Export\Filter\IntFilter</item>
+                <!-- IntFilter is also used for 'decimal' type -->
+                <item name="decimal" xsi:type="object">Magento\InventoryImportExport\Model\Export\Filter\IntFilter</item>
+                <item name="varchar" xsi:type="object">Magento\InventoryImportExport\Model\Export\Filter\VarcharFilter</item>
+            </argument>
+        </arguments>
+    </type>
+</config>
diff --git a/app/code/Magento/InventoryImportExport/etc/export.xml b/app/code/Magento/InventoryImportExport/etc/export.xml
new file mode 100644
index 000000000000..da4f062e5c3f
--- /dev/null
+++ b/app/code/Magento/InventoryImportExport/etc/export.xml
@@ -0,0 +1,10 @@
+<?xml version="1.0"?>
+<!--
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+-->
+<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_ImportExport:etc/export.xsd">
+    <entity name="stock_sources" label="Stock Sources" model="Magento\InventoryImportExport\Model\Export\Sources" entityAttributeFilterType="stock_sources"/>
+</config>
diff --git a/app/code/Magento/InventoryImportExport/etc/import.xml b/app/code/Magento/InventoryImportExport/etc/import.xml
new file mode 100644
index 000000000000..283b4dce0a5b
--- /dev/null
+++ b/app/code/Magento/InventoryImportExport/etc/import.xml
@@ -0,0 +1,10 @@
+<?xml version="1.0"?>
+<!--
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+-->
+<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_ImportExport:etc/import.xsd">
+    <entity name="stock_sources" label="Stock Sources" model="Magento\InventoryImportExport\Model\Import\Sources" behaviorModel="Magento\ImportExport\Model\Source\Import\Behavior\Basic" />
+</config>
diff --git a/app/code/Magento/InventoryImportExport/etc/module.xml b/app/code/Magento/InventoryImportExport/etc/module.xml
new file mode 100644
index 000000000000..56c03395b1d4
--- /dev/null
+++ b/app/code/Magento/InventoryImportExport/etc/module.xml
@@ -0,0 +1,10 @@
+<?xml version="1.0"?>
+<!--
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+-->
+<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Module/etc/module.xsd">
+    <module name="Magento_InventoryImportExport" setup_version="1.0.0" />
+</config>
diff --git a/app/code/Magento/InventoryImportExport/registration.php b/app/code/Magento/InventoryImportExport/registration.php
new file mode 100644
index 000000000000..9b2496816f1a
--- /dev/null
+++ b/app/code/Magento/InventoryImportExport/registration.php
@@ -0,0 +1,11 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+
+\Magento\Framework\Component\ComponentRegistrar::register(
+    \Magento\Framework\Component\ComponentRegistrar::MODULE,
+    'Magento_InventoryImportExport',
+    __DIR__
+);