diff --git a/sdk/reservations/arm-reservations/README.md b/sdk/reservations/arm-reservations/README.md
index 156ab2e58ad8..e75981e8de0f 100644
--- a/sdk/reservations/arm-reservations/README.md
+++ b/sdk/reservations/arm-reservations/README.md
@@ -15,7 +15,7 @@ npm install @azure/arm-reservations
 
 ### How to use
 
-#### nodejs - Authentication, client creation and get quota as an example written in TypeScript.
+#### nodejs - client creation and get quota as an example written in TypeScript.
 
 ##### Install @azure/ms-rest-nodeauth
 
@@ -26,12 +26,14 @@ npm install @azure/ms-rest-nodeauth@"^3.0.0"
 
 ##### Sample code
 
-```javascript
+While the below sample uses the interactive login, other authentication options can be found in the [README.md file of @azure/ms-rest-nodeauth](https://www.npmjs.com/package/@azure/ms-rest-nodeauth) package
+```typescript
+const msRestNodeAuth = require("@azure/ms-rest-nodeauth");
 const { AzureReservationAPI } = require("@azure/arm-reservations");
-const { interactiveLogin } = require("@azure/ms-rest-nodeauth");
+const subscriptionId = process.env["AZURE_SUBSCRIPTION_ID"];
 
-interactiveLogin().then((creds) => {
-  const client = new AzureReservationAPI(creds);
+msRestNodeAuth.interactiveLogin().then((creds) => {
+  const client = new AzureReservationAPI(creds, subscriptionId);
   const subscriptionId = "testsubscriptionId";
   const providerId = "testproviderId";
   const location = "westus";
@@ -68,6 +70,7 @@ See https://github.com/Azure/ms-rest-browserauth to learn how to authenticate to
     <script src="node_modules/@azure/ms-rest-browserauth/dist/msAuth.js"></script>
     <script src="node_modules/@azure/arm-reservations/dist/arm-reservations.js"></script>
     <script type="text/javascript">
+      const subscriptionId = "<Subscription_Id>";
       const authManager = new msAuth.AuthManager({
         clientId: "<client id for your Azure AD app>",
         tenant: "<optional tenant for your organization>"
@@ -77,7 +80,7 @@ See https://github.com/Azure/ms-rest-browserauth to learn how to authenticate to
           // may cause redirects
           authManager.login();
         }
-        const client = new Azure.ArmReservations.AzureReservationAPI(res.creds);
+        const client = new Azure.ArmReservations.AzureReservationAPI(res.creds, subscriptionId);
         const subscriptionId = "testsubscriptionId";
         const providerId = "testproviderId";
         const location = "westus";
diff --git a/sdk/reservations/arm-reservations/rollup.config.js b/sdk/reservations/arm-reservations/rollup.config.js
index 157b6cdd6516..254b7e0e555f 100644
--- a/sdk/reservations/arm-reservations/rollup.config.js
+++ b/sdk/reservations/arm-reservations/rollup.config.js
@@ -21,8 +21,8 @@ const config = {
       "@azure/ms-rest-azure-js": "msRestAzure"
     },
     banner: `/*
- * Copyright (c) Microsoft Corporation. All rights reserved.
- * Licensed under the MIT License. See License.txt in the project root for license information.
+ * Copyright (c) Microsoft Corporation.
+ * Licensed under the MIT License.
  *
  * Code generated by Microsoft (R) AutoRest Code Generator.
  * Changes may cause incorrect behavior and will be lost if the code is regenerated.
diff --git a/sdk/reservations/arm-reservations/src/azureReservationAPI.ts b/sdk/reservations/arm-reservations/src/azureReservationAPI.ts
index 7144f601969a..e9e6164f2eec 100644
--- a/sdk/reservations/arm-reservations/src/azureReservationAPI.ts
+++ b/sdk/reservations/arm-reservations/src/azureReservationAPI.ts
@@ -1,7 +1,6 @@
 /*
- * Copyright (c) Microsoft Corporation. All rights reserved.
- * Licensed under the MIT License. See License.txt in the project root for
- * license information.
+ * Copyright (c) Microsoft Corporation.
+ * Licensed under the MIT License.
  *
  * Code generated by Microsoft (R) AutoRest Code Generator.
  * Changes may cause incorrect behavior and will be lost if the code is
@@ -24,6 +23,8 @@ class AzureReservationAPI extends AzureReservationAPIContext {
   reservation: operations.Reservation;
   reservationOrder: operations.ReservationOrder;
   operation: operations.Operation;
+  calculateExchange: operations.CalculateExchange;
+  exchange: operations.Exchange;
 
   /**
    * Initializes a new instance of the AzureReservationAPI class.
@@ -38,6 +39,8 @@ class AzureReservationAPI extends AzureReservationAPIContext {
     this.reservation = new operations.Reservation(this);
     this.reservationOrder = new operations.ReservationOrder(this);
     this.operation = new operations.Operation(this);
+    this.calculateExchange = new operations.CalculateExchange(this);
+    this.exchange = new operations.Exchange(this);
   }
 
   /**
diff --git a/sdk/reservations/arm-reservations/src/azureReservationAPIContext.ts b/sdk/reservations/arm-reservations/src/azureReservationAPIContext.ts
index 2b7c59c69762..960df0b19f80 100644
--- a/sdk/reservations/arm-reservations/src/azureReservationAPIContext.ts
+++ b/sdk/reservations/arm-reservations/src/azureReservationAPIContext.ts
@@ -1,7 +1,6 @@
 /*
- * Copyright (c) Microsoft Corporation. All rights reserved.
- * Licensed under the MIT License. See License.txt in the project root for
- * license information.
+ * Copyright (c) Microsoft Corporation.
+ * Licensed under the MIT License.
  *
  * Code generated by Microsoft (R) AutoRest Code Generator.
  * Changes may cause incorrect behavior and will be lost if the code is
diff --git a/sdk/reservations/arm-reservations/src/models/autoQuotaIncreaseMappers.ts b/sdk/reservations/arm-reservations/src/models/autoQuotaIncreaseMappers.ts
index 20c18ae09551..2b7dce9ae4e6 100644
--- a/sdk/reservations/arm-reservations/src/models/autoQuotaIncreaseMappers.ts
+++ b/sdk/reservations/arm-reservations/src/models/autoQuotaIncreaseMappers.ts
@@ -1,6 +1,6 @@
 /*
- * Copyright (c) Microsoft Corporation. All rights reserved.
- * Licensed under the MIT License. See License.txt in the project root for license information.
+ * Copyright (c) Microsoft Corporation.
+ * Licensed under the MIT License.
  *
  * Code generated by Microsoft (R) AutoRest Code Generator.
  * Changes may cause incorrect behavior and will be lost if the code is regenerated.
diff --git a/sdk/reservations/arm-reservations/src/models/calculateExchangeMappers.ts b/sdk/reservations/arm-reservations/src/models/calculateExchangeMappers.ts
new file mode 100644
index 000000000000..f7f3a0268aa3
--- /dev/null
+++ b/sdk/reservations/arm-reservations/src/models/calculateExchangeMappers.ts
@@ -0,0 +1,28 @@
+/*
+ * Copyright (c) Microsoft Corporation.
+ * Licensed under the MIT License.
+ *
+ * Code generated by Microsoft (R) AutoRest Code Generator.
+ * Changes may cause incorrect behavior and will be lost if the code is regenerated.
+ */
+
+export {
+  BillingInformation,
+  CalculateExchangeOperationResultResponse,
+  CalculateExchangePostHeaders,
+  CalculateExchangeRequest,
+  CalculateExchangeRequestProperties,
+  CalculateExchangeResponseProperties,
+  ErrorModel,
+  ExchangePolicyError,
+  ExchangePolicyErrors,
+  ExtendedErrorInfo,
+  OperationResultError,
+  Price,
+  PurchaseRequest,
+  PurchaseRequestPropertiesReservedResourceProperties,
+  ReservationToExchange,
+  ReservationToPurchaseCalculateExchange,
+  ReservationToReturn,
+  SkuName
+} from "../models/mappers";
diff --git a/sdk/reservations/arm-reservations/src/models/exchangeMappers.ts b/sdk/reservations/arm-reservations/src/models/exchangeMappers.ts
new file mode 100644
index 000000000000..76b320d6e8a0
--- /dev/null
+++ b/sdk/reservations/arm-reservations/src/models/exchangeMappers.ts
@@ -0,0 +1,24 @@
+/*
+ * Copyright (c) Microsoft Corporation.
+ * Licensed under the MIT License.
+ *
+ * Code generated by Microsoft (R) AutoRest Code Generator.
+ * Changes may cause incorrect behavior and will be lost if the code is regenerated.
+ */
+
+export {
+  BillingInformation,
+  ErrorModel,
+  ExchangeOperationResultResponse,
+  ExchangePolicyError,
+  ExchangePolicyErrors,
+  ExchangePostHeaders,
+  ExchangeRequest,
+  ExchangeRequestProperties,
+  ExchangeResponseProperties,
+  ExtendedErrorInfo,
+  OperationResultError,
+  Price,
+  ReservationToPurchaseExchange,
+  ReservationToReturnForExchange
+} from "../models/mappers";
diff --git a/sdk/reservations/arm-reservations/src/models/index.ts b/sdk/reservations/arm-reservations/src/models/index.ts
index 87f07a96e772..2e354d7a45cd 100644
--- a/sdk/reservations/arm-reservations/src/models/index.ts
+++ b/sdk/reservations/arm-reservations/src/models/index.ts
@@ -1,6 +1,6 @@
 /*
- * Copyright (c) Microsoft Corporation. All rights reserved.
- * Licensed under the MIT License. See License.txt in the project root for license information.
+ * Copyright (c) Microsoft Corporation.
+ * Licensed under the MIT License.
  *
  * Code generated by Microsoft (R) AutoRest Code Generator.
  * Changes may cause incorrect behavior and will be lost if the code is regenerated.
@@ -500,6 +500,20 @@ export interface ExceptionResponse {
   error?: ServiceError;
 }
 
+/**
+ * Available scope request properties
+ */
+export interface AvailableScopeRequestProperties {
+  scopes?: string[];
+}
+
+/**
+ * Available scope
+ */
+export interface AvailableScopeRequest {
+  properties?: AvailableScopeRequestProperties;
+}
+
 /**
  * An interface representing SkuName.
  */
@@ -507,6 +521,310 @@ export interface SkuName {
   name?: string;
 }
 
+/**
+ * Properties specific to each reserved resource type. Not required if not applicable.
+ */
+export interface PurchaseRequestPropertiesReservedResourceProperties {
+  /**
+   * Possible values include: 'On', 'Off'
+   */
+  instanceFlexibility?: InstanceFlexibility;
+}
+
+/**
+ * An interface representing PurchaseRequest.
+ */
+export interface PurchaseRequest {
+  sku?: SkuName;
+  /**
+   * The Azure Region where the reserved resource lives.
+   */
+  location?: string;
+  /**
+   * Possible values include: 'VirtualMachines', 'SqlDatabases', 'SuseLinux', 'CosmosDb', 'RedHat',
+   * 'SqlDataWarehouse', 'VMwareCloudSimple', 'RedHatOsa', 'Databricks', 'AppService',
+   * 'ManagedDisk', 'BlockBlob', 'RedisCache', 'AzureDataExplorer', 'MySql', 'MariaDb',
+   * 'PostgreSql', 'DedicatedHost', 'SapHana', 'SqlAzureHybridBenefit'
+   */
+  reservedResourceType?: ReservedResourceType;
+  billingScopeId?: string;
+  /**
+   * Possible values include: 'P1Y', 'P3Y'
+   */
+  term?: ReservationTerm;
+  /**
+   * Possible values include: 'Upfront', 'Monthly'
+   */
+  billingPlan?: ReservationBillingPlan;
+  quantity?: number;
+  /**
+   * Friendly name of the Reservation
+   */
+  displayName?: string;
+  /**
+   * Possible values include: 'Single', 'Shared'
+   */
+  appliedScopeType?: AppliedScopeType;
+  appliedScopes?: string[];
+  renew?: boolean;
+  /**
+   * Properties specific to each reserved resource type. Not required if not applicable.
+   */
+  reservedResourceProperties?: PurchaseRequestPropertiesReservedResourceProperties;
+}
+
+/**
+ * Reservation to return
+ */
+export interface ReservationToReturn {
+  /**
+   * Fully qualified identifier of the Reservation being returned
+   */
+  reservationId?: string;
+  /**
+   * Quantity to be returned. Must be greater than zero.
+   */
+  quantity?: number;
+}
+
+/**
+ * Calculate exchange request properties
+ */
+export interface CalculateExchangeRequestProperties {
+  /**
+   * List of reservations that are being purchased in this exchange.
+   */
+  reservationsToPurchase?: PurchaseRequest[];
+  /**
+   * List of reservations that are being returned in this exchange.
+   */
+  reservationsToExchange?: ReservationToReturn[];
+}
+
+/**
+ * Calculate exchange request
+ */
+export interface CalculateExchangeRequest {
+  properties?: CalculateExchangeRequestProperties;
+}
+
+/**
+ * Exchange request properties
+ */
+export interface ExchangeRequestProperties {
+  /**
+   * SessionId that was returned by CalculateExchange API.
+   */
+  sessionId?: string;
+}
+
+/**
+ * Exchange request
+ */
+export interface ExchangeRequest {
+  properties?: ExchangeRequestProperties;
+}
+
+/**
+ * An interface representing Price.
+ */
+export interface Price {
+  /**
+   * The ISO 4217 3-letter currency code for the currency used by this purchase record.
+   */
+  currencyCode?: string;
+  amount?: number;
+}
+
+/**
+ * Reservation purchase details
+ */
+export interface ReservationToPurchaseCalculateExchange {
+  billingCurrencyTotal?: Price;
+}
+
+/**
+ * billing information
+ */
+export interface BillingInformation {
+  billingCurrencyTotalPaidAmount?: Price;
+  billingCurrencyProratedAmount?: Price;
+  billingCurrencyRemainingCommitmentAmount?: Price;
+}
+
+/**
+ * Reservation refund details
+ */
+export interface ReservationToExchange {
+  /**
+   * Fully qualified id of the Reservation being returned.
+   */
+  reservationId?: string;
+  /**
+   * Quantity to be returned
+   */
+  quantity?: number;
+  billingRefundAmount?: Price;
+  billingInformation?: BillingInformation;
+}
+
+/**
+ * error details
+ */
+export interface ExchangePolicyError {
+  code?: string;
+  message?: string;
+}
+
+/**
+ * Exchange policy errors
+ */
+export interface ExchangePolicyErrors {
+  /**
+   * Exchange Policy errors
+   */
+  policyErrors?: ExchangePolicyError[];
+}
+
+/**
+ * CalculateExchange response properties
+ */
+export interface CalculateExchangeResponseProperties {
+  /**
+   * Exchange session identifier
+   */
+  sessionId?: string;
+  netPayable?: Price;
+  refundsTotal?: Price;
+  purchasesTotal?: Price;
+  /**
+   * Details of the reservations being purchased
+   */
+  reservationsToPurchase?: ReservationToPurchaseCalculateExchange[];
+  /**
+   * Details of the reservations being returned
+   */
+  reservationsToExchange?: ReservationToExchange[];
+  policyResult?: ExchangePolicyErrors;
+}
+
+/**
+ * Required if status == failed or status == canceled.
+ */
+export interface OperationResultError {
+  /**
+   * Required if status == failed or status == cancelled. If status == failed, provide an invariant
+   * error code used for error troubleshooting, aggregation, and analysis.
+   */
+  code?: string;
+  /**
+   * Required if status == failed. Localized. If status == failed, provide an actionable error
+   * message indicating what error occurred, and what the user can do to address the issue.
+   */
+  message?: string;
+}
+
+/**
+ * CalculateExchange operation result
+ */
+export interface CalculateExchangeOperationResultResponse {
+  /**
+   * It should match what is used to GET the operation result.
+   */
+  id?: string;
+  /**
+   * It must match the last segment of the id field, and will typically be a GUID / system
+   * generated value.
+   */
+  name?: string;
+  /**
+   * Status of the operation. Possible values include: 'Succeeded', 'Failed', 'Cancelled',
+   * 'Pending'
+   */
+  status?: CalculateExchangeOperationResultStatus;
+  properties?: CalculateExchangeResponseProperties;
+  error?: OperationResultError;
+}
+
+/**
+ * Reservation purchase details
+ */
+export interface ReservationToPurchaseExchange {
+  /**
+   * Fully qualified id of the ReservationOrder being purchased
+   */
+  reservationOrderId?: string;
+  billingCurrencyTotal?: Price;
+  /**
+   * Possible values include: 'Succeeded', 'Failed', 'Cancelled', 'Pending'
+   */
+  status?: OperationStatus;
+}
+
+/**
+ * Reservation refund details
+ */
+export interface ReservationToReturnForExchange {
+  /**
+   * Fully qualified id of the Reservation being returned.
+   */
+  reservationId?: string;
+  /**
+   * Quantity to be returned
+   */
+  quantity?: number;
+  billingRefundAmount?: Price;
+  billingInformation?: BillingInformation;
+  /**
+   * Possible values include: 'Succeeded', 'Failed', 'Cancelled', 'Pending'
+   */
+  status?: OperationStatus;
+}
+
+/**
+ * Exchange response properties
+ */
+export interface ExchangeResponseProperties {
+  /**
+   * Exchange session identifier
+   */
+  sessionId?: string;
+  netPayable?: Price;
+  refundsTotal?: Price;
+  purchasesTotal?: Price;
+  /**
+   * Details of the reservations being purchased
+   */
+  reservationsToPurchase?: ReservationToPurchaseExchange[];
+  /**
+   * Details of the reservations being returned
+   */
+  reservationsToExchange?: ReservationToReturnForExchange[];
+  policyResult?: ExchangePolicyErrors;
+}
+
+/**
+ * Exchange operation result
+ */
+export interface ExchangeOperationResultResponse {
+  /**
+   * It should match what is used to GET the operation result.
+   */
+  id?: string;
+  /**
+   * It must match the last segment of the id field, and will typically be a GUID / system
+   * generated value.
+   */
+  name?: string;
+  /**
+   * Status of the operation. Possible values include: 'Succeeded', 'Failed', 'Cancelled',
+   * 'PendingRefunds', 'PendingPurchases'
+   */
+  status?: ExchangeOperationResultStatus;
+  properties?: ExchangeResponseProperties;
+  error?: OperationResultError;
+}
+
 /**
  * An interface representing SkuProperty.
  */
@@ -577,17 +895,6 @@ export interface Catalog {
   readonly restrictions?: SkuRestriction[];
 }
 
-/**
- * An interface representing Price.
- */
-export interface Price {
-  /**
-   * The ISO 4217 3-letter currency code for the currency used by this purchase record.
-   */
-  currencyCode?: string;
-  amount?: number;
-}
-
 /**
  * An interface representing ExtendedStatusInfo.
  */
@@ -687,56 +994,6 @@ export interface ReservationMergeProperties {
   mergeSources?: string[];
 }
 
-/**
- * Properties specific to each reserved resource type. Not required if not applicable.
- */
-export interface PurchaseRequestPropertiesReservedResourceProperties {
-  /**
-   * Possible values include: 'On', 'Off'
-   */
-  instanceFlexibility?: InstanceFlexibility;
-}
-
-/**
- * An interface representing PurchaseRequest.
- */
-export interface PurchaseRequest {
-  sku?: SkuName;
-  /**
-   * The Azure Region where the reserved resource lives.
-   */
-  location?: string;
-  /**
-   * Possible values include: 'VirtualMachines', 'SqlDatabases', 'SuseLinux', 'CosmosDb', 'RedHat',
-   * 'SqlDataWarehouse', 'VMwareCloudSimple', 'RedHatOsa'
-   */
-  reservedResourceType?: ReservedResourceType;
-  billingScopeId?: string;
-  /**
-   * Possible values include: 'P1Y', 'P3Y'
-   */
-  term?: ReservationTerm;
-  /**
-   * Possible values include: 'Upfront', 'Monthly'
-   */
-  billingPlan?: ReservationBillingPlan;
-  quantity?: number;
-  /**
-   * Friendly name of the Reservation
-   */
-  displayName?: string;
-  /**
-   * Possible values include: 'Single', 'Shared'
-   */
-  appliedScopeType?: AppliedScopeType;
-  appliedScopes?: string[];
-  renew?: boolean;
-  /**
-   * Properties specific to each reserved resource type. Not required if not applicable.
-   */
-  reservedResourceProperties?: PurchaseRequestPropertiesReservedResourceProperties;
-}
-
 /**
  * Amount that Microsoft uses for record. Used during refund for calculating refund limit. Tax is
  * not included. This is locked price 30 days before expiry.
@@ -778,7 +1035,9 @@ export interface RenewPropertiesResponse {
 export interface ReservationProperties {
   /**
    * Possible values include: 'VirtualMachines', 'SqlDatabases', 'SuseLinux', 'CosmosDb', 'RedHat',
-   * 'SqlDataWarehouse', 'VMwareCloudSimple', 'RedHatOsa'
+   * 'SqlDataWarehouse', 'VMwareCloudSimple', 'RedHatOsa', 'Databricks', 'AppService',
+   * 'ManagedDisk', 'BlockBlob', 'RedisCache', 'AzureDataExplorer', 'MySql', 'MariaDb',
+   * 'PostgreSql', 'DedicatedHost', 'SapHana', 'SqlAzureHybridBenefit'
    */
   reservedResourceType?: ReservedResourceType;
   /**
@@ -1142,12 +1401,52 @@ export interface SubscriptionScopeProperties {
 }
 
 /**
- * An interface representing Properties.
+ * An interface representing AvailableScopeProperties.
  */
-export interface Properties {
+export interface AvailableScopeProperties {
   properties?: SubscriptionScopeProperties;
 }
 
+/**
+ * An interface representing ChangeDirectoryRequest.
+ */
+export interface ChangeDirectoryRequest {
+  /**
+   * Tenant id GUID that reservation order is to be transferred to
+   */
+  destinationTenantId?: string;
+}
+
+/**
+ * Change directory result for reservation order or reservation
+ */
+export interface ChangeDirectoryResult {
+  /**
+   * Identifier of the reservation order or reservation
+   */
+  id?: string;
+  /**
+   * Name of the reservation order or reservation
+   */
+  name?: string;
+  /**
+   * True if change directory operation succeeded on this reservation order or reservation
+   */
+  isSucceeded?: boolean;
+  /**
+   * Error reason if operation failed. Null otherwise
+   */
+  error?: string;
+}
+
+/**
+ * Change directory response
+ */
+export interface ChangeDirectoryResponse {
+  reservationOrder?: ChangeDirectoryResult;
+  reservations?: ChangeDirectoryResult[];
+}
+
 /**
  * Optional Parameters.
  */
@@ -1171,6 +1470,29 @@ export interface QuotaRequestStatusListOptionalParams extends msRest.RequestOpti
   skiptoken?: string;
 }
 
+/**
+ * Optional Parameters.
+ */
+export interface QuotaRequestStatusListNextOptionalParams extends msRest.RequestOptionsBase {
+  /**
+   * | Field                    | Supported operators
+   * |---------------------|------------------------
+   *
+   * |requestSubmitTime | ge, le, eq, gt, lt
+   */
+  filter?: string;
+  /**
+   * Number of records to return.
+   */
+  top?: number;
+  /**
+   * Skiptoken is only used if a previous operation returned a partial result. If a previous
+   * response contains a nextLink element, the value of the nextLink element will include a
+   * skiptoken parameter that specifies a starting point to use for subsequent calls
+   */
+  skiptoken?: string;
+}
+
 /**
  * Optional Parameters.
  */
@@ -1231,6 +1553,44 @@ export interface QuotaListHeaders {
   eTag: string;
 }
 
+/**
+ * Defines headers for Post operation.
+ */
+export interface CalculateExchangePostHeaders {
+  /**
+   * URL for checking the ongoing status of the operation.
+   */
+  azureAsyncOperation: string;
+  /**
+   * URL for determining when an operation has completed. Only use this value only when
+   * Azure-AsyncOperation isn't returned.
+   */
+  location: string;
+  /**
+   * Clients should wait for the Retry-After interval before polling again
+   */
+  retryAfter: number;
+}
+
+/**
+ * Defines headers for Post operation.
+ */
+export interface ExchangePostHeaders {
+  /**
+   * URL for checking the ongoing status of the operation.
+   */
+  azureAsyncOperation: string;
+  /**
+   * URL for determining when an operation has completed. Only use this value only when
+   * Azure-AsyncOperation isn't returned.
+   */
+  location: string;
+  /**
+   * Clients should wait for the Retry-After interval before polling again
+   */
+  retryAfter: number;
+}
+
 /**
  * @interface
  * Quota limits.
@@ -1291,6 +1651,49 @@ export interface OperationList extends Array<OperationResponse> {
   nextLink?: string;
 }
 
+/**
+ * Defines values for ReservedResourceType.
+ * Possible values include: 'VirtualMachines', 'SqlDatabases', 'SuseLinux', 'CosmosDb', 'RedHat',
+ * 'SqlDataWarehouse', 'VMwareCloudSimple', 'RedHatOsa', 'Databricks', 'AppService', 'ManagedDisk',
+ * 'BlockBlob', 'RedisCache', 'AzureDataExplorer', 'MySql', 'MariaDb', 'PostgreSql',
+ * 'DedicatedHost', 'SapHana', 'SqlAzureHybridBenefit'
+ * @readonly
+ * @enum {string}
+ */
+export type ReservedResourceType = 'VirtualMachines' | 'SqlDatabases' | 'SuseLinux' | 'CosmosDb' | 'RedHat' | 'SqlDataWarehouse' | 'VMwareCloudSimple' | 'RedHatOsa' | 'Databricks' | 'AppService' | 'ManagedDisk' | 'BlockBlob' | 'RedisCache' | 'AzureDataExplorer' | 'MySql' | 'MariaDb' | 'PostgreSql' | 'DedicatedHost' | 'SapHana' | 'SqlAzureHybridBenefit';
+
+/**
+ * Defines values for ReservationTerm.
+ * Possible values include: 'P1Y', 'P3Y'
+ * @readonly
+ * @enum {string}
+ */
+export type ReservationTerm = 'P1Y' | 'P3Y';
+
+/**
+ * Defines values for ReservationBillingPlan.
+ * Possible values include: 'Upfront', 'Monthly'
+ * @readonly
+ * @enum {string}
+ */
+export type ReservationBillingPlan = 'Upfront' | 'Monthly';
+
+/**
+ * Defines values for AppliedScopeType.
+ * Possible values include: 'Single', 'Shared'
+ * @readonly
+ * @enum {string}
+ */
+export type AppliedScopeType = 'Single' | 'Shared';
+
+/**
+ * Defines values for InstanceFlexibility.
+ * Possible values include: 'On', 'Off'
+ * @readonly
+ * @enum {string}
+ */
+export type InstanceFlexibility = 'On' | 'Off';
+
 /**
  * Defines values for ReservationStatusCode.
  * Possible values include: 'None', 'Pending', 'Active', 'PurchaseError', 'PaymentInstrumentError',
@@ -1327,53 +1730,37 @@ export type ReservationStatusCode = 'None' | 'Pending' | 'Active' | 'PurchaseErr
 export type ErrorResponseCode = 'NotSpecified' | 'InternalServerError' | 'ServerTimeout' | 'AuthorizationFailed' | 'BadRequest' | 'ClientCertificateThumbprintNotSet' | 'InvalidRequestContent' | 'OperationFailed' | 'HttpMethodNotSupported' | 'InvalidRequestUri' | 'MissingTenantId' | 'InvalidTenantId' | 'InvalidReservationOrderId' | 'InvalidReservationId' | 'ReservationIdNotInReservationOrder' | 'ReservationOrderNotFound' | 'InvalidSubscriptionId' | 'InvalidAccessToken' | 'InvalidLocationId' | 'UnauthenticatedRequestsThrottled' | 'InvalidHealthCheckType' | 'Forbidden' | 'BillingScopeIdCannotBeChanged' | 'AppliedScopesNotAssociatedWithCommerceAccount' | 'PatchValuesSameAsExisting' | 'RoleAssignmentCreationFailed' | 'ReservationOrderCreationFailed' | 'ReservationOrderNotEnabled' | 'CapacityUpdateScopesFailed' | 'UnsupportedReservationTerm' | 'ReservationOrderIdAlreadyExists' | 'RiskCheckFailed' | 'CreateQuoteFailed' | 'ActivateQuoteFailed' | 'NonsupportedAccountId' | 'PaymentInstrumentNotFound' | 'MissingAppliedScopesForSingle' | 'NoValidReservationsToReRate' | 'ReRateOnlyAllowedForEA' | 'OperationCannotBePerformedInCurrentState' | 'InvalidSingleAppliedScopesCount' | 'InvalidFulfillmentRequestParameters' | 'NotSupportedCountry' | 'InvalidRefundQuantity' | 'PurchaseError' | 'BillingCustomerInputError' | 'BillingPaymentInstrumentSoftError' | 'BillingPaymentInstrumentHardError' | 'BillingTransientError' | 'BillingError' | 'FulfillmentConfigurationError' | 'FulfillmentOutOfStockError' | 'FulfillmentTransientError' | 'FulfillmentError' | 'CalculatePriceFailed';
 
 /**
- * Defines values for ReservationBillingPlan.
- * Possible values include: 'Upfront', 'Monthly'
+ * Defines values for CalculateExchangeOperationResultStatus.
+ * Possible values include: 'Succeeded', 'Failed', 'Cancelled', 'Pending'
  * @readonly
  * @enum {string}
  */
-export type ReservationBillingPlan = 'Upfront' | 'Monthly';
+export type CalculateExchangeOperationResultStatus = 'Succeeded' | 'Failed' | 'Cancelled' | 'Pending';
 
 /**
- * Defines values for ReservationTerm.
- * Possible values include: 'P1Y', 'P3Y'
- * @readonly
- * @enum {string}
- */
-export type ReservationTerm = 'P1Y' | 'P3Y';
-
-/**
- * Defines values for PaymentStatus.
- * Possible values include: 'Succeeded', 'Failed', 'Scheduled', 'Cancelled'
- * @readonly
- * @enum {string}
- */
-export type PaymentStatus = 'Succeeded' | 'Failed' | 'Scheduled' | 'Cancelled';
-
-/**
- * Defines values for ReservedResourceType.
- * Possible values include: 'VirtualMachines', 'SqlDatabases', 'SuseLinux', 'CosmosDb', 'RedHat',
- * 'SqlDataWarehouse', 'VMwareCloudSimple', 'RedHatOsa'
+ * Defines values for ExchangeOperationResultStatus.
+ * Possible values include: 'Succeeded', 'Failed', 'Cancelled', 'PendingRefunds',
+ * 'PendingPurchases'
  * @readonly
  * @enum {string}
  */
-export type ReservedResourceType = 'VirtualMachines' | 'SqlDatabases' | 'SuseLinux' | 'CosmosDb' | 'RedHat' | 'SqlDataWarehouse' | 'VMwareCloudSimple' | 'RedHatOsa';
+export type ExchangeOperationResultStatus = 'Succeeded' | 'Failed' | 'Cancelled' | 'PendingRefunds' | 'PendingPurchases';
 
 /**
- * Defines values for InstanceFlexibility.
- * Possible values include: 'On', 'Off'
+ * Defines values for OperationStatus.
+ * Possible values include: 'Succeeded', 'Failed', 'Cancelled', 'Pending'
  * @readonly
  * @enum {string}
  */
-export type InstanceFlexibility = 'On' | 'Off';
+export type OperationStatus = 'Succeeded' | 'Failed' | 'Cancelled' | 'Pending';
 
 /**
- * Defines values for AppliedScopeType.
- * Possible values include: 'Single', 'Shared'
+ * Defines values for PaymentStatus.
+ * Possible values include: 'Succeeded', 'Failed', 'Scheduled', 'Cancelled'
  * @readonly
  * @enum {string}
  */
-export type AppliedScopeType = 'Single' | 'Shared';
+export type PaymentStatus = 'Succeeded' | 'Failed' | 'Scheduled' | 'Cancelled';
 
 /**
  * Contains response data for the get operation.
@@ -1628,7 +2015,7 @@ export type AutoQuotaIncreaseCreateResponse = AutoQuotaIncreaseDetail & {
 /**
  * Contains response data for the availableScopes operation.
  */
-export type ReservationAvailableScopesResponse = Properties & {
+export type ReservationAvailableScopesResponse = AvailableScopeProperties & {
   /**
    * The underlying HTTP response.
    */
@@ -1641,7 +2028,7 @@ export type ReservationAvailableScopesResponse = Properties & {
       /**
        * The response body as parsed JSON or XML
        */
-      parsedBody: Properties;
+      parsedBody: AvailableScopeProperties;
     };
 };
 
@@ -1768,7 +2155,7 @@ export type ReservationListRevisionsResponse = ReservationList & {
 /**
  * Contains response data for the beginAvailableScopes operation.
  */
-export type ReservationBeginAvailableScopesResponse = Properties & {
+export type ReservationBeginAvailableScopesResponse = AvailableScopeProperties & {
   /**
    * The underlying HTTP response.
    */
@@ -1781,7 +2168,7 @@ export type ReservationBeginAvailableScopesResponse = Properties & {
       /**
        * The response body as parsed JSON or XML
        */
-      parsedBody: Properties;
+      parsedBody: AvailableScopeProperties;
     };
 };
 
@@ -2005,6 +2392,26 @@ export type ReservationOrderGetResponse = ReservationOrderResponse & {
     };
 };
 
+/**
+ * Contains response data for the changeDirectory operation.
+ */
+export type ReservationOrderChangeDirectoryResponse = ChangeDirectoryResponse & {
+  /**
+   * The underlying HTTP response.
+   */
+  _response: msRest.HttpResponse & {
+      /**
+       * The response body as text (string format)
+       */
+      bodyAsText: string;
+
+      /**
+       * The response body as parsed JSON or XML
+       */
+      parsedBody: ChangeDirectoryResponse;
+    };
+};
+
 /**
  * Contains response data for the beginPurchase operation.
  */
@@ -2084,3 +2491,53 @@ export type OperationListNextResponse = OperationList & {
       parsedBody: OperationList;
     };
 };
+
+/**
+ * Contains response data for the post operation.
+ */
+export type CalculateExchangePostResponse = CalculateExchangeOperationResultResponse & CalculateExchangePostHeaders & {
+  /**
+   * The underlying HTTP response.
+   */
+  _response: msRest.HttpResponse & {
+      /**
+       * The parsed HTTP response headers.
+       */
+      parsedHeaders: CalculateExchangePostHeaders;
+
+      /**
+       * The response body as text (string format)
+       */
+      bodyAsText: string;
+
+      /**
+       * The response body as parsed JSON or XML
+       */
+      parsedBody: CalculateExchangeOperationResultResponse;
+    };
+};
+
+/**
+ * Contains response data for the post operation.
+ */
+export type ExchangePostResponse = ExchangeOperationResultResponse & ExchangePostHeaders & {
+  /**
+   * The underlying HTTP response.
+   */
+  _response: msRest.HttpResponse & {
+      /**
+       * The parsed HTTP response headers.
+       */
+      parsedHeaders: ExchangePostHeaders;
+
+      /**
+       * The response body as text (string format)
+       */
+      bodyAsText: string;
+
+      /**
+       * The response body as parsed JSON or XML
+       */
+      parsedBody: ExchangeOperationResultResponse;
+    };
+};
diff --git a/sdk/reservations/arm-reservations/src/models/mappers.ts b/sdk/reservations/arm-reservations/src/models/mappers.ts
index 4b32f6b03da5..82a8be6adcfe 100644
--- a/sdk/reservations/arm-reservations/src/models/mappers.ts
+++ b/sdk/reservations/arm-reservations/src/models/mappers.ts
@@ -1,6 +1,6 @@
 /*
- * Copyright (c) Microsoft Corporation. All rights reserved.
- * Licensed under the MIT License. See License.txt in the project root for license information.
+ * Copyright (c) Microsoft Corporation.
+ * Licensed under the MIT License.
  *
  * Code generated by Microsoft (R) AutoRest Code Generator.
  * Changes may cause incorrect behavior and will be lost if the code is regenerated.
@@ -789,17 +789,729 @@ export const ExceptionResponse: msRest.CompositeMapper = {
   }
 };
 
+export const AvailableScopeRequestProperties: msRest.CompositeMapper = {
+  serializedName: "AvailableScopeRequestProperties",
+  type: {
+    name: "Composite",
+    className: "AvailableScopeRequestProperties",
+    modelProperties: {
+      scopes: {
+        serializedName: "scopes",
+        type: {
+          name: "Sequence",
+          element: {
+            type: {
+              name: "String"
+            }
+          }
+        }
+      }
+    }
+  }
+};
+
+export const AvailableScopeRequest: msRest.CompositeMapper = {
+  serializedName: "AvailableScopeRequest",
+  type: {
+    name: "Composite",
+    className: "AvailableScopeRequest",
+    modelProperties: {
+      properties: {
+        serializedName: "properties",
+        type: {
+          name: "Composite",
+          className: "AvailableScopeRequestProperties"
+        }
+      }
+    }
+  }
+};
+
 export const SkuName: msRest.CompositeMapper = {
   serializedName: "SkuName",
   type: {
     name: "Composite",
-    className: "SkuName",
+    className: "SkuName",
+    modelProperties: {
+      name: {
+        serializedName: "name",
+        type: {
+          name: "String"
+        }
+      }
+    }
+  }
+};
+
+export const PurchaseRequestPropertiesReservedResourceProperties: msRest.CompositeMapper = {
+  serializedName: "PurchaseRequestProperties_reservedResourceProperties",
+  type: {
+    name: "Composite",
+    className: "PurchaseRequestPropertiesReservedResourceProperties",
+    modelProperties: {
+      instanceFlexibility: {
+        serializedName: "instanceFlexibility",
+        type: {
+          name: "String"
+        }
+      }
+    }
+  }
+};
+
+export const PurchaseRequest: msRest.CompositeMapper = {
+  serializedName: "PurchaseRequest",
+  type: {
+    name: "Composite",
+    className: "PurchaseRequest",
+    modelProperties: {
+      sku: {
+        serializedName: "sku",
+        type: {
+          name: "Composite",
+          className: "SkuName"
+        }
+      },
+      location: {
+        serializedName: "location",
+        type: {
+          name: "String"
+        }
+      },
+      reservedResourceType: {
+        serializedName: "properties.reservedResourceType",
+        type: {
+          name: "String"
+        }
+      },
+      billingScopeId: {
+        serializedName: "properties.billingScopeId",
+        type: {
+          name: "String"
+        }
+      },
+      term: {
+        serializedName: "properties.term",
+        type: {
+          name: "String"
+        }
+      },
+      billingPlan: {
+        serializedName: "properties.billingPlan",
+        type: {
+          name: "String"
+        }
+      },
+      quantity: {
+        serializedName: "properties.quantity",
+        type: {
+          name: "Number"
+        }
+      },
+      displayName: {
+        serializedName: "properties.displayName",
+        type: {
+          name: "String"
+        }
+      },
+      appliedScopeType: {
+        serializedName: "properties.appliedScopeType",
+        type: {
+          name: "String"
+        }
+      },
+      appliedScopes: {
+        serializedName: "properties.appliedScopes",
+        type: {
+          name: "Sequence",
+          element: {
+            type: {
+              name: "String"
+            }
+          }
+        }
+      },
+      renew: {
+        serializedName: "properties.renew",
+        type: {
+          name: "Boolean"
+        }
+      },
+      reservedResourceProperties: {
+        serializedName: "properties.reservedResourceProperties",
+        type: {
+          name: "Composite",
+          className: "PurchaseRequestPropertiesReservedResourceProperties"
+        }
+      }
+    }
+  }
+};
+
+export const ReservationToReturn: msRest.CompositeMapper = {
+  serializedName: "ReservationToReturn",
+  type: {
+    name: "Composite",
+    className: "ReservationToReturn",
+    modelProperties: {
+      reservationId: {
+        serializedName: "reservationId",
+        type: {
+          name: "String"
+        }
+      },
+      quantity: {
+        serializedName: "quantity",
+        type: {
+          name: "Number"
+        }
+      }
+    }
+  }
+};
+
+export const CalculateExchangeRequestProperties: msRest.CompositeMapper = {
+  serializedName: "CalculateExchangeRequestProperties",
+  type: {
+    name: "Composite",
+    className: "CalculateExchangeRequestProperties",
+    modelProperties: {
+      reservationsToPurchase: {
+        serializedName: "reservationsToPurchase",
+        type: {
+          name: "Sequence",
+          element: {
+            type: {
+              name: "Composite",
+              className: "PurchaseRequest"
+            }
+          }
+        }
+      },
+      reservationsToExchange: {
+        serializedName: "reservationsToExchange",
+        type: {
+          name: "Sequence",
+          element: {
+            type: {
+              name: "Composite",
+              className: "ReservationToReturn"
+            }
+          }
+        }
+      }
+    }
+  }
+};
+
+export const CalculateExchangeRequest: msRest.CompositeMapper = {
+  serializedName: "CalculateExchangeRequest",
+  type: {
+    name: "Composite",
+    className: "CalculateExchangeRequest",
+    modelProperties: {
+      properties: {
+        serializedName: "properties",
+        type: {
+          name: "Composite",
+          className: "CalculateExchangeRequestProperties"
+        }
+      }
+    }
+  }
+};
+
+export const ExchangeRequestProperties: msRest.CompositeMapper = {
+  serializedName: "ExchangeRequestProperties",
+  type: {
+    name: "Composite",
+    className: "ExchangeRequestProperties",
+    modelProperties: {
+      sessionId: {
+        serializedName: "sessionId",
+        type: {
+          name: "String"
+        }
+      }
+    }
+  }
+};
+
+export const ExchangeRequest: msRest.CompositeMapper = {
+  serializedName: "ExchangeRequest",
+  type: {
+    name: "Composite",
+    className: "ExchangeRequest",
+    modelProperties: {
+      properties: {
+        serializedName: "properties",
+        type: {
+          name: "Composite",
+          className: "ExchangeRequestProperties"
+        }
+      }
+    }
+  }
+};
+
+export const Price: msRest.CompositeMapper = {
+  serializedName: "Price",
+  type: {
+    name: "Composite",
+    className: "Price",
+    modelProperties: {
+      currencyCode: {
+        serializedName: "currencyCode",
+        type: {
+          name: "String"
+        }
+      },
+      amount: {
+        serializedName: "amount",
+        type: {
+          name: "Number"
+        }
+      }
+    }
+  }
+};
+
+export const ReservationToPurchaseCalculateExchange: msRest.CompositeMapper = {
+  serializedName: "ReservationToPurchaseCalculateExchange",
+  type: {
+    name: "Composite",
+    className: "ReservationToPurchaseCalculateExchange",
+    modelProperties: {
+      billingCurrencyTotal: {
+        serializedName: "billingCurrencyTotal",
+        type: {
+          name: "Composite",
+          className: "Price"
+        }
+      }
+    }
+  }
+};
+
+export const BillingInformation: msRest.CompositeMapper = {
+  serializedName: "BillingInformation",
+  type: {
+    name: "Composite",
+    className: "BillingInformation",
+    modelProperties: {
+      billingCurrencyTotalPaidAmount: {
+        serializedName: "billingCurrencyTotalPaidAmount",
+        type: {
+          name: "Composite",
+          className: "Price"
+        }
+      },
+      billingCurrencyProratedAmount: {
+        serializedName: "billingCurrencyProratedAmount",
+        type: {
+          name: "Composite",
+          className: "Price"
+        }
+      },
+      billingCurrencyRemainingCommitmentAmount: {
+        serializedName: "billingCurrencyRemainingCommitmentAmount",
+        type: {
+          name: "Composite",
+          className: "Price"
+        }
+      }
+    }
+  }
+};
+
+export const ReservationToExchange: msRest.CompositeMapper = {
+  serializedName: "ReservationToExchange",
+  type: {
+    name: "Composite",
+    className: "ReservationToExchange",
+    modelProperties: {
+      reservationId: {
+        serializedName: "reservationId",
+        type: {
+          name: "String"
+        }
+      },
+      quantity: {
+        serializedName: "quantity",
+        type: {
+          name: "Number"
+        }
+      },
+      billingRefundAmount: {
+        serializedName: "billingRefundAmount",
+        type: {
+          name: "Composite",
+          className: "Price"
+        }
+      },
+      billingInformation: {
+        serializedName: "billingInformation",
+        type: {
+          name: "Composite",
+          className: "BillingInformation"
+        }
+      }
+    }
+  }
+};
+
+export const ExchangePolicyError: msRest.CompositeMapper = {
+  serializedName: "ExchangePolicyError",
+  type: {
+    name: "Composite",
+    className: "ExchangePolicyError",
+    modelProperties: {
+      code: {
+        serializedName: "code",
+        type: {
+          name: "String"
+        }
+      },
+      message: {
+        serializedName: "message",
+        type: {
+          name: "String"
+        }
+      }
+    }
+  }
+};
+
+export const ExchangePolicyErrors: msRest.CompositeMapper = {
+  serializedName: "ExchangePolicyErrors",
+  type: {
+    name: "Composite",
+    className: "ExchangePolicyErrors",
+    modelProperties: {
+      policyErrors: {
+        serializedName: "policyErrors",
+        type: {
+          name: "Sequence",
+          element: {
+            type: {
+              name: "Composite",
+              className: "ExchangePolicyError"
+            }
+          }
+        }
+      }
+    }
+  }
+};
+
+export const CalculateExchangeResponseProperties: msRest.CompositeMapper = {
+  serializedName: "CalculateExchangeResponseProperties",
+  type: {
+    name: "Composite",
+    className: "CalculateExchangeResponseProperties",
+    modelProperties: {
+      sessionId: {
+        serializedName: "sessionId",
+        type: {
+          name: "String"
+        }
+      },
+      netPayable: {
+        serializedName: "netPayable",
+        type: {
+          name: "Composite",
+          className: "Price"
+        }
+      },
+      refundsTotal: {
+        serializedName: "refundsTotal",
+        type: {
+          name: "Composite",
+          className: "Price"
+        }
+      },
+      purchasesTotal: {
+        serializedName: "purchasesTotal",
+        type: {
+          name: "Composite",
+          className: "Price"
+        }
+      },
+      reservationsToPurchase: {
+        serializedName: "reservationsToPurchase",
+        type: {
+          name: "Sequence",
+          element: {
+            type: {
+              name: "Composite",
+              className: "ReservationToPurchaseCalculateExchange"
+            }
+          }
+        }
+      },
+      reservationsToExchange: {
+        serializedName: "reservationsToExchange",
+        type: {
+          name: "Sequence",
+          element: {
+            type: {
+              name: "Composite",
+              className: "ReservationToExchange"
+            }
+          }
+        }
+      },
+      policyResult: {
+        serializedName: "policyResult",
+        type: {
+          name: "Composite",
+          className: "ExchangePolicyErrors"
+        }
+      }
+    }
+  }
+};
+
+export const OperationResultError: msRest.CompositeMapper = {
+  serializedName: "OperationResultError",
+  type: {
+    name: "Composite",
+    className: "OperationResultError",
+    modelProperties: {
+      code: {
+        serializedName: "code",
+        type: {
+          name: "String"
+        }
+      },
+      message: {
+        serializedName: "message",
+        type: {
+          name: "String"
+        }
+      }
+    }
+  }
+};
+
+export const CalculateExchangeOperationResultResponse: msRest.CompositeMapper = {
+  serializedName: "CalculateExchangeOperationResultResponse",
+  type: {
+    name: "Composite",
+    className: "CalculateExchangeOperationResultResponse",
+    modelProperties: {
+      id: {
+        serializedName: "id",
+        type: {
+          name: "String"
+        }
+      },
+      name: {
+        serializedName: "name",
+        type: {
+          name: "String"
+        }
+      },
+      status: {
+        serializedName: "status",
+        type: {
+          name: "String"
+        }
+      },
+      properties: {
+        serializedName: "properties",
+        type: {
+          name: "Composite",
+          className: "CalculateExchangeResponseProperties"
+        }
+      },
+      error: {
+        serializedName: "error",
+        type: {
+          name: "Composite",
+          className: "OperationResultError"
+        }
+      }
+    }
+  }
+};
+
+export const ReservationToPurchaseExchange: msRest.CompositeMapper = {
+  serializedName: "ReservationToPurchaseExchange",
+  type: {
+    name: "Composite",
+    className: "ReservationToPurchaseExchange",
+    modelProperties: {
+      reservationOrderId: {
+        serializedName: "reservationOrderId",
+        type: {
+          name: "String"
+        }
+      },
+      billingCurrencyTotal: {
+        serializedName: "billingCurrencyTotal",
+        type: {
+          name: "Composite",
+          className: "Price"
+        }
+      },
+      status: {
+        serializedName: "status",
+        type: {
+          name: "String"
+        }
+      }
+    }
+  }
+};
+
+export const ReservationToReturnForExchange: msRest.CompositeMapper = {
+  serializedName: "ReservationToReturnForExchange",
+  type: {
+    name: "Composite",
+    className: "ReservationToReturnForExchange",
+    modelProperties: {
+      reservationId: {
+        serializedName: "reservationId",
+        type: {
+          name: "String"
+        }
+      },
+      quantity: {
+        serializedName: "quantity",
+        type: {
+          name: "Number"
+        }
+      },
+      billingRefundAmount: {
+        serializedName: "billingRefundAmount",
+        type: {
+          name: "Composite",
+          className: "Price"
+        }
+      },
+      billingInformation: {
+        serializedName: "billingInformation",
+        type: {
+          name: "Composite",
+          className: "BillingInformation"
+        }
+      },
+      status: {
+        serializedName: "status",
+        type: {
+          name: "String"
+        }
+      }
+    }
+  }
+};
+
+export const ExchangeResponseProperties: msRest.CompositeMapper = {
+  serializedName: "ExchangeResponseProperties",
+  type: {
+    name: "Composite",
+    className: "ExchangeResponseProperties",
+    modelProperties: {
+      sessionId: {
+        serializedName: "sessionId",
+        type: {
+          name: "String"
+        }
+      },
+      netPayable: {
+        serializedName: "netPayable",
+        type: {
+          name: "Composite",
+          className: "Price"
+        }
+      },
+      refundsTotal: {
+        serializedName: "refundsTotal",
+        type: {
+          name: "Composite",
+          className: "Price"
+        }
+      },
+      purchasesTotal: {
+        serializedName: "purchasesTotal",
+        type: {
+          name: "Composite",
+          className: "Price"
+        }
+      },
+      reservationsToPurchase: {
+        serializedName: "reservationsToPurchase",
+        type: {
+          name: "Sequence",
+          element: {
+            type: {
+              name: "Composite",
+              className: "ReservationToPurchaseExchange"
+            }
+          }
+        }
+      },
+      reservationsToExchange: {
+        serializedName: "reservationsToExchange",
+        type: {
+          name: "Sequence",
+          element: {
+            type: {
+              name: "Composite",
+              className: "ReservationToReturnForExchange"
+            }
+          }
+        }
+      },
+      policyResult: {
+        serializedName: "policyResult",
+        type: {
+          name: "Composite",
+          className: "ExchangePolicyErrors"
+        }
+      }
+    }
+  }
+};
+
+export const ExchangeOperationResultResponse: msRest.CompositeMapper = {
+  serializedName: "ExchangeOperationResultResponse",
+  type: {
+    name: "Composite",
+    className: "ExchangeOperationResultResponse",
     modelProperties: {
+      id: {
+        serializedName: "id",
+        type: {
+          name: "String"
+        }
+      },
       name: {
         serializedName: "name",
         type: {
           name: "String"
         }
+      },
+      status: {
+        serializedName: "status",
+        type: {
+          name: "String"
+        }
+      },
+      properties: {
+        serializedName: "properties",
+        type: {
+          name: "Composite",
+          className: "ExchangeResponseProperties"
+        }
+      },
+      error: {
+        serializedName: "error",
+        type: {
+          name: "Composite",
+          className: "OperationResultError"
+        }
       }
     }
   }
@@ -950,28 +1662,6 @@ export const Catalog: msRest.CompositeMapper = {
   }
 };
 
-export const Price: msRest.CompositeMapper = {
-  serializedName: "Price",
-  type: {
-    name: "Composite",
-    className: "Price",
-    modelProperties: {
-      currencyCode: {
-        serializedName: "currencyCode",
-        type: {
-          name: "String"
-        }
-      },
-      amount: {
-        serializedName: "amount",
-        type: {
-          name: "Number"
-        }
-      }
-    }
-  }
-};
-
 export const ExtendedStatusInfo: msRest.CompositeMapper = {
   serializedName: "ExtendedStatusInfo",
   type: {
@@ -1144,111 +1834,6 @@ export const ReservationMergeProperties: msRest.CompositeMapper = {
   }
 };
 
-export const PurchaseRequestPropertiesReservedResourceProperties: msRest.CompositeMapper = {
-  serializedName: "PurchaseRequestProperties_reservedResourceProperties",
-  type: {
-    name: "Composite",
-    className: "PurchaseRequestPropertiesReservedResourceProperties",
-    modelProperties: {
-      instanceFlexibility: {
-        serializedName: "instanceFlexibility",
-        type: {
-          name: "String"
-        }
-      }
-    }
-  }
-};
-
-export const PurchaseRequest: msRest.CompositeMapper = {
-  serializedName: "PurchaseRequest",
-  type: {
-    name: "Composite",
-    className: "PurchaseRequest",
-    modelProperties: {
-      sku: {
-        serializedName: "sku",
-        type: {
-          name: "Composite",
-          className: "SkuName"
-        }
-      },
-      location: {
-        serializedName: "location",
-        type: {
-          name: "String"
-        }
-      },
-      reservedResourceType: {
-        serializedName: "properties.reservedResourceType",
-        type: {
-          name: "String"
-        }
-      },
-      billingScopeId: {
-        serializedName: "properties.billingScopeId",
-        type: {
-          name: "String"
-        }
-      },
-      term: {
-        serializedName: "properties.term",
-        type: {
-          name: "String"
-        }
-      },
-      billingPlan: {
-        serializedName: "properties.billingPlan",
-        type: {
-          name: "String"
-        }
-      },
-      quantity: {
-        serializedName: "properties.quantity",
-        type: {
-          name: "Number"
-        }
-      },
-      displayName: {
-        serializedName: "properties.displayName",
-        type: {
-          name: "String"
-        }
-      },
-      appliedScopeType: {
-        serializedName: "properties.appliedScopeType",
-        type: {
-          name: "String"
-        }
-      },
-      appliedScopes: {
-        serializedName: "properties.appliedScopes",
-        type: {
-          name: "Sequence",
-          element: {
-            type: {
-              name: "String"
-            }
-          }
-        }
-      },
-      renew: {
-        serializedName: "properties.renew",
-        type: {
-          name: "Boolean"
-        }
-      },
-      reservedResourceProperties: {
-        serializedName: "properties.reservedResourceProperties",
-        type: {
-          name: "Composite",
-          className: "PurchaseRequestPropertiesReservedResourceProperties"
-        }
-      }
-    }
-  }
-};
-
 export const RenewPropertiesResponsePricingCurrencyTotal: msRest.CompositeMapper = {
   serializedName: "RenewPropertiesResponse_pricingCurrencyTotal",
   type: {
@@ -2081,11 +2666,11 @@ export const SubscriptionScopeProperties: msRest.CompositeMapper = {
   }
 };
 
-export const Properties: msRest.CompositeMapper = {
-  serializedName: "Properties",
+export const AvailableScopeProperties: msRest.CompositeMapper = {
+  serializedName: "AvailableScopeProperties",
   type: {
     name: "Composite",
-    className: "Properties",
+    className: "AvailableScopeProperties",
     modelProperties: {
       properties: {
         serializedName: "properties",
@@ -2098,6 +2683,85 @@ export const Properties: msRest.CompositeMapper = {
   }
 };
 
+export const ChangeDirectoryRequest: msRest.CompositeMapper = {
+  serializedName: "ChangeDirectoryRequest",
+  type: {
+    name: "Composite",
+    className: "ChangeDirectoryRequest",
+    modelProperties: {
+      destinationTenantId: {
+        serializedName: "destinationTenantId",
+        type: {
+          name: "String"
+        }
+      }
+    }
+  }
+};
+
+export const ChangeDirectoryResult: msRest.CompositeMapper = {
+  serializedName: "ChangeDirectoryResult",
+  type: {
+    name: "Composite",
+    className: "ChangeDirectoryResult",
+    modelProperties: {
+      id: {
+        serializedName: "id",
+        type: {
+          name: "String"
+        }
+      },
+      name: {
+        serializedName: "name",
+        type: {
+          name: "String"
+        }
+      },
+      isSucceeded: {
+        serializedName: "isSucceeded",
+        type: {
+          name: "Boolean"
+        }
+      },
+      error: {
+        serializedName: "error",
+        type: {
+          name: "String"
+        }
+      }
+    }
+  }
+};
+
+export const ChangeDirectoryResponse: msRest.CompositeMapper = {
+  serializedName: "ChangeDirectoryResponse",
+  type: {
+    name: "Composite",
+    className: "ChangeDirectoryResponse",
+    modelProperties: {
+      reservationOrder: {
+        serializedName: "reservationOrder",
+        type: {
+          name: "Composite",
+          className: "ChangeDirectoryResult"
+        }
+      },
+      reservations: {
+        serializedName: "reservations",
+        type: {
+          name: "Sequence",
+          element: {
+            type: {
+              name: "Composite",
+              className: "ChangeDirectoryResult"
+            }
+          }
+        }
+      }
+    }
+  }
+};
+
 export const QuotaGetHeaders: msRest.CompositeMapper = {
   serializedName: "quota-get-headers",
   type: {
@@ -2130,6 +2794,62 @@ export const QuotaListHeaders: msRest.CompositeMapper = {
   }
 };
 
+export const CalculateExchangePostHeaders: msRest.CompositeMapper = {
+  serializedName: "calculateexchange-post-headers",
+  type: {
+    name: "Composite",
+    className: "CalculateExchangePostHeaders",
+    modelProperties: {
+      azureAsyncOperation: {
+        serializedName: "azure-asyncoperation",
+        type: {
+          name: "String"
+        }
+      },
+      location: {
+        serializedName: "location",
+        type: {
+          name: "String"
+        }
+      },
+      retryAfter: {
+        serializedName: "retry-after",
+        type: {
+          name: "Number"
+        }
+      }
+    }
+  }
+};
+
+export const ExchangePostHeaders: msRest.CompositeMapper = {
+  serializedName: "exchange-post-headers",
+  type: {
+    name: "Composite",
+    className: "ExchangePostHeaders",
+    modelProperties: {
+      azureAsyncOperation: {
+        serializedName: "azure-asyncoperation",
+        type: {
+          name: "String"
+        }
+      },
+      location: {
+        serializedName: "location",
+        type: {
+          name: "String"
+        }
+      },
+      retryAfter: {
+        serializedName: "retry-after",
+        type: {
+          name: "Number"
+        }
+      }
+    }
+  }
+};
+
 export const QuotaLimits: msRest.CompositeMapper = {
   serializedName: "QuotaLimits",
   type: {
diff --git a/sdk/reservations/arm-reservations/src/models/operationMappers.ts b/sdk/reservations/arm-reservations/src/models/operationMappers.ts
index 1cb5e8e92a3c..e8357d65a5d4 100644
--- a/sdk/reservations/arm-reservations/src/models/operationMappers.ts
+++ b/sdk/reservations/arm-reservations/src/models/operationMappers.ts
@@ -1,6 +1,6 @@
 /*
- * Copyright (c) Microsoft Corporation. All rights reserved.
- * Licensed under the MIT License. See License.txt in the project root for license information.
+ * Copyright (c) Microsoft Corporation.
+ * Licensed under the MIT License.
  *
  * Code generated by Microsoft (R) AutoRest Code Generator.
  * Changes may cause incorrect behavior and will be lost if the code is regenerated.
diff --git a/sdk/reservations/arm-reservations/src/models/parameters.ts b/sdk/reservations/arm-reservations/src/models/parameters.ts
index d4fe8e71b7d2..5fc54d34cdc0 100644
--- a/sdk/reservations/arm-reservations/src/models/parameters.ts
+++ b/sdk/reservations/arm-reservations/src/models/parameters.ts
@@ -1,7 +1,6 @@
 /*
- * Copyright (c) Microsoft Corporation. All rights reserved.
- * Licensed under the MIT License. See License.txt in the project root for
- * license information.
+ * Copyright (c) Microsoft Corporation.
+ * Licensed under the MIT License.
  *
  * Code generated by Microsoft (R) AutoRest Code Generator.
  * Changes may cause incorrect behavior and will be lost if the code is
@@ -38,7 +37,19 @@ export const apiVersion1: msRest.OperationQueryParameter = {
     required: true,
     isConstant: true,
     serializedName: "api-version",
-    defaultValue: '2019-04-01',
+    defaultValue: '2020-10-01-preview',
+    type: {
+      name: "String"
+    }
+  }
+};
+export const apiVersion2: msRest.OperationQueryParameter = {
+  parameterPath: "apiVersion",
+  mapper: {
+    required: true,
+    isConstant: true,
+    serializedName: "api-version",
+    defaultValue: '2020-11-15-preview',
     type: {
       name: "String"
     }
diff --git a/sdk/reservations/arm-reservations/src/models/quotaMappers.ts b/sdk/reservations/arm-reservations/src/models/quotaMappers.ts
index c534a9487143..5a32efb507b4 100644
--- a/sdk/reservations/arm-reservations/src/models/quotaMappers.ts
+++ b/sdk/reservations/arm-reservations/src/models/quotaMappers.ts
@@ -1,6 +1,6 @@
 /*
- * Copyright (c) Microsoft Corporation. All rights reserved.
- * Licensed under the MIT License. See License.txt in the project root for license information.
+ * Copyright (c) Microsoft Corporation.
+ * Licensed under the MIT License.
  *
  * Code generated by Microsoft (R) AutoRest Code Generator.
  * Changes may cause incorrect behavior and will be lost if the code is regenerated.
diff --git a/sdk/reservations/arm-reservations/src/models/quotaRequestStatusMappers.ts b/sdk/reservations/arm-reservations/src/models/quotaRequestStatusMappers.ts
index fff340699edd..ffc45f160534 100644
--- a/sdk/reservations/arm-reservations/src/models/quotaRequestStatusMappers.ts
+++ b/sdk/reservations/arm-reservations/src/models/quotaRequestStatusMappers.ts
@@ -1,6 +1,6 @@
 /*
- * Copyright (c) Microsoft Corporation. All rights reserved.
- * Licensed under the MIT License. See License.txt in the project root for license information.
+ * Copyright (c) Microsoft Corporation.
+ * Licensed under the MIT License.
  *
  * Code generated by Microsoft (R) AutoRest Code Generator.
  * Changes may cause incorrect behavior and will be lost if the code is regenerated.
diff --git a/sdk/reservations/arm-reservations/src/models/reservationMappers.ts b/sdk/reservations/arm-reservations/src/models/reservationMappers.ts
index d18c0abdafa3..1b153dfaa95c 100644
--- a/sdk/reservations/arm-reservations/src/models/reservationMappers.ts
+++ b/sdk/reservations/arm-reservations/src/models/reservationMappers.ts
@@ -1,6 +1,6 @@
 /*
- * Copyright (c) Microsoft Corporation. All rights reserved.
- * Licensed under the MIT License. See License.txt in the project root for license information.
+ * Copyright (c) Microsoft Corporation.
+ * Licensed under the MIT License.
  *
  * Code generated by Microsoft (R) AutoRest Code Generator.
  * Changes may cause incorrect behavior and will be lost if the code is regenerated.
@@ -10,6 +10,9 @@ export {
   Actions,
   AqiSettings,
   AutoQuotaIncreaseDetail,
+  AvailableScopeProperties,
+  AvailableScopeRequest,
+  AvailableScopeRequestProperties,
   BaseResource,
   CurrentQuotaLimit,
   CurrentQuotaLimitBase,
@@ -23,7 +26,6 @@ export {
   PatchPropertiesRenewProperties,
   PaymentDetail,
   Price,
-  Properties,
   PurchaseRequest,
   PurchaseRequestPropertiesReservedResourceProperties,
   QuotaProperties,
diff --git a/sdk/reservations/arm-reservations/src/models/reservationOrderMappers.ts b/sdk/reservations/arm-reservations/src/models/reservationOrderMappers.ts
index ed7d25267a6a..1e610fc58129 100644
--- a/sdk/reservations/arm-reservations/src/models/reservationOrderMappers.ts
+++ b/sdk/reservations/arm-reservations/src/models/reservationOrderMappers.ts
@@ -1,6 +1,6 @@
 /*
- * Copyright (c) Microsoft Corporation. All rights reserved.
- * Licensed under the MIT License. See License.txt in the project root for license information.
+ * Copyright (c) Microsoft Corporation.
+ * Licensed under the MIT License.
  *
  * Code generated by Microsoft (R) AutoRest Code Generator.
  * Changes may cause incorrect behavior and will be lost if the code is regenerated.
@@ -15,6 +15,9 @@ export {
   CalculatePriceResponseProperties,
   CalculatePriceResponsePropertiesBillingCurrencyTotal,
   CalculatePriceResponsePropertiesPricingCurrencyTotal,
+  ChangeDirectoryRequest,
+  ChangeDirectoryResponse,
+  ChangeDirectoryResult,
   CurrentQuotaLimit,
   CurrentQuotaLimitBase,
   EmailAction,
diff --git a/sdk/reservations/arm-reservations/src/operations/autoQuotaIncrease.ts b/sdk/reservations/arm-reservations/src/operations/autoQuotaIncrease.ts
index 4c44c717e3ff..1c41a9270e84 100644
--- a/sdk/reservations/arm-reservations/src/operations/autoQuotaIncrease.ts
+++ b/sdk/reservations/arm-reservations/src/operations/autoQuotaIncrease.ts
@@ -1,7 +1,6 @@
 /*
- * Copyright (c) Microsoft Corporation. All rights reserved.
- * Licensed under the MIT License. See License.txt in the project root for
- * license information.
+ * Copyright (c) Microsoft Corporation.
+ * Licensed under the MIT License.
  *
  * Code generated by Microsoft (R) AutoRest Code Generator.
  * Changes may cause incorrect behavior and will be lost if the code is
diff --git a/sdk/reservations/arm-reservations/src/operations/calculateExchange.ts b/sdk/reservations/arm-reservations/src/operations/calculateExchange.ts
new file mode 100644
index 000000000000..aee856d68688
--- /dev/null
+++ b/sdk/reservations/arm-reservations/src/operations/calculateExchange.ts
@@ -0,0 +1,91 @@
+/*
+ * Copyright (c) Microsoft Corporation.
+ * Licensed under the MIT License.
+ *
+ * Code generated by Microsoft (R) AutoRest Code Generator.
+ * Changes may cause incorrect behavior and will be lost if the code is
+ * regenerated.
+ */
+
+import * as msRest from "@azure/ms-rest-js";
+import * as msRestAzure from "@azure/ms-rest-azure-js";
+import * as Models from "../models";
+import * as Mappers from "../models/calculateExchangeMappers";
+import * as Parameters from "../models/parameters";
+import { AzureReservationAPIContext } from "../azureReservationAPIContext";
+
+/** Class representing a CalculateExchange. */
+export class CalculateExchange {
+  private readonly client: AzureReservationAPIContext;
+
+  /**
+   * Create a CalculateExchange.
+   * @param {AzureReservationAPIContext} client Reference to the service client.
+   */
+  constructor(client: AzureReservationAPIContext) {
+    this.client = client;
+  }
+
+  /**
+   * Calculates price for exchanging `Reservations` if there are no policy errors.
+   * @summary Calculates the refund amounts and price of the new purchases.
+   * @param body Request containing purchases and refunds that need to be executed.
+   * @param [options] The optional parameters
+   * @returns Promise<Models.CalculateExchangePostResponse>
+   */
+  post(body: Models.CalculateExchangeRequest, options?: msRest.RequestOptionsBase): Promise<Models.CalculateExchangePostResponse> {
+    return this.beginPost(body,options)
+      .then(lroPoller => lroPoller.pollUntilFinished()) as Promise<Models.CalculateExchangePostResponse>;
+  }
+
+  /**
+   * Calculates price for exchanging `Reservations` if there are no policy errors.
+   * @summary Calculates the refund amounts and price of the new purchases.
+   * @param body Request containing purchases and refunds that need to be executed.
+   * @param [options] The optional parameters
+   * @returns Promise<msRestAzure.LROPoller>
+   */
+  beginPost(body: Models.CalculateExchangeRequest, options?: msRest.RequestOptionsBase): Promise<msRestAzure.LROPoller> {
+    return this.client.sendLRORequest(
+      {
+        body,
+        options
+      },
+      beginPostOperationSpec,
+      options);
+  }
+}
+
+// Operation Specifications
+const serializer = new msRest.Serializer(Mappers);
+const beginPostOperationSpec: msRest.OperationSpec = {
+  httpMethod: "POST",
+  path: "providers/Microsoft.Capacity/calculateExchange",
+  queryParameters: [
+    Parameters.apiVersion1
+  ],
+  headerParameters: [
+    Parameters.acceptLanguage
+  ],
+  requestBody: {
+    parameterPath: "body",
+    mapper: {
+      ...Mappers.CalculateExchangeRequest,
+      required: true
+    }
+  },
+  responses: {
+    200: {
+      bodyMapper: Mappers.CalculateExchangeOperationResultResponse,
+      headersMapper: Mappers.CalculateExchangePostHeaders
+    },
+    202: {
+      headersMapper: Mappers.CalculateExchangePostHeaders
+    },
+    default: {
+      bodyMapper: Mappers.ErrorModel,
+      headersMapper: Mappers.CalculateExchangePostHeaders
+    }
+  },
+  serializer
+};
diff --git a/sdk/reservations/arm-reservations/src/operations/exchange.ts b/sdk/reservations/arm-reservations/src/operations/exchange.ts
new file mode 100644
index 000000000000..161ebd3cc443
--- /dev/null
+++ b/sdk/reservations/arm-reservations/src/operations/exchange.ts
@@ -0,0 +1,91 @@
+/*
+ * Copyright (c) Microsoft Corporation.
+ * Licensed under the MIT License.
+ *
+ * Code generated by Microsoft (R) AutoRest Code Generator.
+ * Changes may cause incorrect behavior and will be lost if the code is
+ * regenerated.
+ */
+
+import * as msRest from "@azure/ms-rest-js";
+import * as msRestAzure from "@azure/ms-rest-azure-js";
+import * as Models from "../models";
+import * as Mappers from "../models/exchangeMappers";
+import * as Parameters from "../models/parameters";
+import { AzureReservationAPIContext } from "../azureReservationAPIContext";
+
+/** Class representing a Exchange. */
+export class Exchange {
+  private readonly client: AzureReservationAPIContext;
+
+  /**
+   * Create a Exchange.
+   * @param {AzureReservationAPIContext} client Reference to the service client.
+   */
+  constructor(client: AzureReservationAPIContext) {
+    this.client = client;
+  }
+
+  /**
+   * Returns one or more `Reservations` in exchange for one or more `Reservation` purchases.
+   * @summary Exchange Reservation(s)
+   * @param body Request containing the refunds and purchases that need to be executed.
+   * @param [options] The optional parameters
+   * @returns Promise<Models.ExchangePostResponse>
+   */
+  post(body: Models.ExchangeRequest, options?: msRest.RequestOptionsBase): Promise<Models.ExchangePostResponse> {
+    return this.beginPost(body,options)
+      .then(lroPoller => lroPoller.pollUntilFinished()) as Promise<Models.ExchangePostResponse>;
+  }
+
+  /**
+   * Returns one or more `Reservations` in exchange for one or more `Reservation` purchases.
+   * @summary Exchange Reservation(s)
+   * @param body Request containing the refunds and purchases that need to be executed.
+   * @param [options] The optional parameters
+   * @returns Promise<msRestAzure.LROPoller>
+   */
+  beginPost(body: Models.ExchangeRequest, options?: msRest.RequestOptionsBase): Promise<msRestAzure.LROPoller> {
+    return this.client.sendLRORequest(
+      {
+        body,
+        options
+      },
+      beginPostOperationSpec,
+      options);
+  }
+}
+
+// Operation Specifications
+const serializer = new msRest.Serializer(Mappers);
+const beginPostOperationSpec: msRest.OperationSpec = {
+  httpMethod: "POST",
+  path: "providers/Microsoft.Capacity/exchange",
+  queryParameters: [
+    Parameters.apiVersion1
+  ],
+  headerParameters: [
+    Parameters.acceptLanguage
+  ],
+  requestBody: {
+    parameterPath: "body",
+    mapper: {
+      ...Mappers.ExchangeRequest,
+      required: true
+    }
+  },
+  responses: {
+    200: {
+      bodyMapper: Mappers.ExchangeOperationResultResponse,
+      headersMapper: Mappers.ExchangePostHeaders
+    },
+    202: {
+      headersMapper: Mappers.ExchangePostHeaders
+    },
+    default: {
+      bodyMapper: Mappers.ErrorModel,
+      headersMapper: Mappers.ExchangePostHeaders
+    }
+  },
+  serializer
+};
diff --git a/sdk/reservations/arm-reservations/src/operations/index.ts b/sdk/reservations/arm-reservations/src/operations/index.ts
index 9fd5ff8ff5bb..298cee1d5194 100644
--- a/sdk/reservations/arm-reservations/src/operations/index.ts
+++ b/sdk/reservations/arm-reservations/src/operations/index.ts
@@ -1,7 +1,6 @@
 /*
- * Copyright (c) Microsoft Corporation. All rights reserved.
- * Licensed under the MIT License. See License.txt in the project root for
- * license information.
+ * Copyright (c) Microsoft Corporation.
+ * Licensed under the MIT License.
  *
  * Code generated by Microsoft (R) AutoRest Code Generator.
  * Changes may cause incorrect behavior and will be lost if the code is
@@ -14,3 +13,5 @@ export * from "./autoQuotaIncrease";
 export * from "./reservation";
 export * from "./reservationOrder";
 export * from "./operation";
+export * from "./calculateExchange";
+export * from "./exchange";
diff --git a/sdk/reservations/arm-reservations/src/operations/operation.ts b/sdk/reservations/arm-reservations/src/operations/operation.ts
index 64ca6b5662de..9fb709e7b1eb 100644
--- a/sdk/reservations/arm-reservations/src/operations/operation.ts
+++ b/sdk/reservations/arm-reservations/src/operations/operation.ts
@@ -1,7 +1,6 @@
 /*
- * Copyright (c) Microsoft Corporation. All rights reserved.
- * Licensed under the MIT License. See License.txt in the project root for
- * license information.
+ * Copyright (c) Microsoft Corporation.
+ * Licensed under the MIT License.
  *
  * Code generated by Microsoft (R) AutoRest Code Generator.
  * Changes may cause incorrect behavior and will be lost if the code is
@@ -110,6 +109,9 @@ const listNextOperationSpec: msRest.OperationSpec = {
   urlParameters: [
     Parameters.nextPageLink
   ],
+  queryParameters: [
+    Parameters.apiVersion1
+  ],
   headerParameters: [
     Parameters.acceptLanguage
   ],
diff --git a/sdk/reservations/arm-reservations/src/operations/quota.ts b/sdk/reservations/arm-reservations/src/operations/quota.ts
index 8d1af70c84a4..75dfe59bdeda 100644
--- a/sdk/reservations/arm-reservations/src/operations/quota.ts
+++ b/sdk/reservations/arm-reservations/src/operations/quota.ts
@@ -1,7 +1,6 @@
 /*
- * Copyright (c) Microsoft Corporation. All rights reserved.
- * Licensed under the MIT License. See License.txt in the project root for
- * license information.
+ * Copyright (c) Microsoft Corporation.
+ * Licensed under the MIT License.
  *
  * Code generated by Microsoft (R) AutoRest Code Generator.
  * Changes may cause incorrect behavior and will be lost if the code is
@@ -392,6 +391,9 @@ const listNextOperationSpec: msRest.OperationSpec = {
   urlParameters: [
     Parameters.nextPageLink
   ],
+  queryParameters: [
+    Parameters.apiVersion0
+  ],
   headerParameters: [
     Parameters.acceptLanguage
   ],
diff --git a/sdk/reservations/arm-reservations/src/operations/quotaRequestStatus.ts b/sdk/reservations/arm-reservations/src/operations/quotaRequestStatus.ts
index eda6f1a1f28a..8772a690296d 100644
--- a/sdk/reservations/arm-reservations/src/operations/quotaRequestStatus.ts
+++ b/sdk/reservations/arm-reservations/src/operations/quotaRequestStatus.ts
@@ -1,7 +1,6 @@
 /*
- * Copyright (c) Microsoft Corporation. All rights reserved.
- * Licensed under the MIT License. See License.txt in the project root for
- * license information.
+ * Copyright (c) Microsoft Corporation.
+ * Licensed under the MIT License.
  *
  * Code generated by Microsoft (R) AutoRest Code Generator.
  * Changes may cause incorrect behavior and will be lost if the code is
@@ -114,7 +113,7 @@ export class QuotaRequestStatus {
    * @param [options] The optional parameters
    * @returns Promise<Models.QuotaRequestStatusListNextResponse>
    */
-  listNext(nextPageLink: string, options?: msRest.RequestOptionsBase): Promise<Models.QuotaRequestStatusListNextResponse>;
+  listNext(nextPageLink: string, options?: Models.QuotaRequestStatusListNextOptionalParams): Promise<Models.QuotaRequestStatusListNextResponse>;
   /**
    * @param nextPageLink The NextLink from the previous successful call to List operation.
    * @param callback The callback
@@ -125,8 +124,8 @@ export class QuotaRequestStatus {
    * @param options The optional parameters
    * @param callback The callback
    */
-  listNext(nextPageLink: string, options: msRest.RequestOptionsBase, callback: msRest.ServiceCallback<Models.QuotaRequestDetailsList>): void;
-  listNext(nextPageLink: string, options?: msRest.RequestOptionsBase | msRest.ServiceCallback<Models.QuotaRequestDetailsList>, callback?: msRest.ServiceCallback<Models.QuotaRequestDetailsList>): Promise<Models.QuotaRequestStatusListNextResponse> {
+  listNext(nextPageLink: string, options: Models.QuotaRequestStatusListNextOptionalParams, callback: msRest.ServiceCallback<Models.QuotaRequestDetailsList>): void;
+  listNext(nextPageLink: string, options?: Models.QuotaRequestStatusListNextOptionalParams | msRest.ServiceCallback<Models.QuotaRequestDetailsList>, callback?: msRest.ServiceCallback<Models.QuotaRequestDetailsList>): Promise<Models.QuotaRequestStatusListNextResponse> {
     return this.client.sendOperationRequest(
       {
         nextPageLink,
@@ -200,6 +199,12 @@ const listNextOperationSpec: msRest.OperationSpec = {
   urlParameters: [
     Parameters.nextPageLink
   ],
+  queryParameters: [
+    Parameters.apiVersion0,
+    Parameters.filter,
+    Parameters.top,
+    Parameters.skiptoken
+  ],
   headerParameters: [
     Parameters.acceptLanguage
   ],
diff --git a/sdk/reservations/arm-reservations/src/operations/reservation.ts b/sdk/reservations/arm-reservations/src/operations/reservation.ts
index f7bb7e9c5bd9..8207103fd2a3 100644
--- a/sdk/reservations/arm-reservations/src/operations/reservation.ts
+++ b/sdk/reservations/arm-reservations/src/operations/reservation.ts
@@ -1,7 +1,6 @@
 /*
- * Copyright (c) Microsoft Corporation. All rights reserved.
- * Licensed under the MIT License. See License.txt in the project root for
- * license information.
+ * Copyright (c) Microsoft Corporation.
+ * Licensed under the MIT License.
  *
  * Code generated by Microsoft (R) AutoRest Code Generator.
  * Changes may cause incorrect behavior and will be lost if the code is
@@ -36,7 +35,7 @@ export class Reservation {
    * @param [options] The optional parameters
    * @returns Promise<Models.ReservationAvailableScopesResponse>
    */
-  availableScopes(reservationOrderId: string, reservationId: string, body: string[], options?: msRest.RequestOptionsBase): Promise<Models.ReservationAvailableScopesResponse> {
+  availableScopes(reservationOrderId: string, reservationId: string, body: Models.AvailableScopeRequest, options?: msRest.RequestOptionsBase): Promise<Models.ReservationAvailableScopesResponse> {
     return this.beginAvailableScopes(reservationOrderId,reservationId,body,options)
       .then(lroPoller => lroPoller.pollUntilFinished()) as Promise<Models.ReservationAvailableScopesResponse>;
   }
@@ -186,7 +185,7 @@ export class Reservation {
    * @param [options] The optional parameters
    * @returns Promise<msRestAzure.LROPoller>
    */
-  beginAvailableScopes(reservationOrderId: string, reservationId: string, body: string[], options?: msRest.RequestOptionsBase): Promise<msRestAzure.LROPoller> {
+  beginAvailableScopes(reservationOrderId: string, reservationId: string, body: Models.AvailableScopeRequest, options?: msRest.RequestOptionsBase): Promise<msRestAzure.LROPoller> {
     return this.client.sendLRORequest(
       {
         reservationOrderId,
@@ -407,21 +406,13 @@ const beginAvailableScopesOperationSpec: msRest.OperationSpec = {
   requestBody: {
     parameterPath: "body",
     mapper: {
-      required: true,
-      serializedName: "body",
-      type: {
-        name: "Sequence",
-        element: {
-          type: {
-            name: "String"
-          }
-        }
-      }
+      ...Mappers.AvailableScopeRequest,
+      required: true
     }
   },
   responses: {
     200: {
-      bodyMapper: Mappers.Properties
+      bodyMapper: Mappers.AvailableScopeProperties
     },
     default: {
       bodyMapper: Mappers.ErrorModel
@@ -553,6 +544,9 @@ const listNextOperationSpec: msRest.OperationSpec = {
   urlParameters: [
     Parameters.nextPageLink
   ],
+  queryParameters: [
+    Parameters.apiVersion1
+  ],
   headerParameters: [
     Parameters.acceptLanguage
   ],
@@ -574,6 +568,9 @@ const listRevisionsNextOperationSpec: msRest.OperationSpec = {
   urlParameters: [
     Parameters.nextPageLink
   ],
+  queryParameters: [
+    Parameters.apiVersion1
+  ],
   headerParameters: [
     Parameters.acceptLanguage
   ],
diff --git a/sdk/reservations/arm-reservations/src/operations/reservationOrder.ts b/sdk/reservations/arm-reservations/src/operations/reservationOrder.ts
index fa7198ca7fcc..325cdf2ca740 100644
--- a/sdk/reservations/arm-reservations/src/operations/reservationOrder.ts
+++ b/sdk/reservations/arm-reservations/src/operations/reservationOrder.ts
@@ -1,7 +1,6 @@
 /*
- * Copyright (c) Microsoft Corporation. All rights reserved.
- * Licensed under the MIT License. See License.txt in the project root for
- * license information.
+ * Copyright (c) Microsoft Corporation.
+ * Licensed under the MIT License.
  *
  * Code generated by Microsoft (R) AutoRest Code Generator.
  * Changes may cause incorrect behavior and will be lost if the code is
@@ -123,6 +122,40 @@ export class ReservationOrder {
       callback) as Promise<Models.ReservationOrderGetResponse>;
   }
 
+  /**
+   * Change directory (tenant) of `ReservationOrder` and all `Reservation` under it to specified
+   * tenant id
+   * @summary Change directory of `ReservationOrder`.
+   * @param reservationOrderId Order Id of the reservation
+   * @param body Information needed to change directory of reservation order
+   * @param [options] The optional parameters
+   * @returns Promise<Models.ReservationOrderChangeDirectoryResponse>
+   */
+  changeDirectory(reservationOrderId: string, body: Models.ChangeDirectoryRequest, options?: msRest.RequestOptionsBase): Promise<Models.ReservationOrderChangeDirectoryResponse>;
+  /**
+   * @param reservationOrderId Order Id of the reservation
+   * @param body Information needed to change directory of reservation order
+   * @param callback The callback
+   */
+  changeDirectory(reservationOrderId: string, body: Models.ChangeDirectoryRequest, callback: msRest.ServiceCallback<Models.ChangeDirectoryResponse>): void;
+  /**
+   * @param reservationOrderId Order Id of the reservation
+   * @param body Information needed to change directory of reservation order
+   * @param options The optional parameters
+   * @param callback The callback
+   */
+  changeDirectory(reservationOrderId: string, body: Models.ChangeDirectoryRequest, options: msRest.RequestOptionsBase, callback: msRest.ServiceCallback<Models.ChangeDirectoryResponse>): void;
+  changeDirectory(reservationOrderId: string, body: Models.ChangeDirectoryRequest, options?: msRest.RequestOptionsBase | msRest.ServiceCallback<Models.ChangeDirectoryResponse>, callback?: msRest.ServiceCallback<Models.ChangeDirectoryResponse>): Promise<Models.ReservationOrderChangeDirectoryResponse> {
+    return this.client.sendOperationRequest(
+      {
+        reservationOrderId,
+        body,
+        options
+      },
+      changeDirectoryOperationSpec,
+      callback) as Promise<Models.ReservationOrderChangeDirectoryResponse>;
+  }
+
   /**
    * Purchase `ReservationOrder` and create resource under the specified URI.
    * @summary Purchase `ReservationOrder`
@@ -245,6 +278,36 @@ const getOperationSpec: msRest.OperationSpec = {
   serializer
 };
 
+const changeDirectoryOperationSpec: msRest.OperationSpec = {
+  httpMethod: "POST",
+  path: "providers/Microsoft.Capacity/reservationOrders/{reservationOrderId}/changeDirectory",
+  urlParameters: [
+    Parameters.reservationOrderId
+  ],
+  queryParameters: [
+    Parameters.apiVersion2
+  ],
+  headerParameters: [
+    Parameters.acceptLanguage
+  ],
+  requestBody: {
+    parameterPath: "body",
+    mapper: {
+      ...Mappers.ChangeDirectoryRequest,
+      required: true
+    }
+  },
+  responses: {
+    200: {
+      bodyMapper: Mappers.ChangeDirectoryResponse
+    },
+    default: {
+      bodyMapper: Mappers.ErrorModel
+    }
+  },
+  serializer
+};
+
 const beginPurchaseOperationSpec: msRest.OperationSpec = {
   httpMethod: "PUT",
   path: "providers/Microsoft.Capacity/reservationOrders/{reservationOrderId}",
@@ -285,6 +348,9 @@ const listNextOperationSpec: msRest.OperationSpec = {
   urlParameters: [
     Parameters.nextPageLink
   ],
+  queryParameters: [
+    Parameters.apiVersion1
+  ],
   headerParameters: [
     Parameters.acceptLanguage
   ],