diff --git a/src/IoTHub.Portal.Infrastructure/Services/AWS/AwsConfigService.cs b/src/IoTHub.Portal.Infrastructure/Services/AWS/AwsConfigService.cs
index 9aacd5ef4..043ec8c48 100644
--- a/src/IoTHub.Portal.Infrastructure/Services/AWS/AwsConfigService.cs
+++ b/src/IoTHub.Portal.Infrastructure/Services/AWS/AwsConfigService.cs
@@ -194,6 +194,9 @@ public async Task DeleteConfiguration(string modelId)
         {
             var modules = await GetConfigModuleList(modelId);
 
+            //Deprecate Deployment Thing type
+            await DeprecateDeploymentThingType(modelId);
+
             foreach (var module in modules.Where(c => string.IsNullOrEmpty(c.Id)))
             {
                 var deletedComponentResponse = await this.greengrass.DeleteComponentAsync(new DeleteComponentRequest
@@ -228,9 +231,31 @@ public async Task DeleteConfiguration(string modelId)
                 {
                     throw new InternalServerErrorException("The deletion of the deployment failed due to an error in the Amazon IoT API.");
                 }
+
             }
         }
 
+        private async Task DeprecateDeploymentThingType(string modelId)
+        {
+            try
+            {
+                var deployment = await this.greengrass.GetDeploymentAsync(new GetDeploymentRequest
+                {
+                    DeploymentId = modelId
+                });
+
+                var deploymentThingType = await this.iotClient.DeprecateThingTypeAsync(new DeprecateThingTypeRequest
+                {
+                    ThingTypeName = deployment.DeploymentName
+                });
+
+            }
+            catch (Amazon.GreengrassV2.Model.ResourceNotFoundException)
+            {
+                throw new InternalServerErrorException("The deployment is not found");
+
+            }
+        }
         public async Task<int> GetFailedDeploymentsCount()
         {
             var failedDeploymentCount = 0;
diff --git a/src/IoTHub.Portal.Tests.Unit/Infrastructure/Services/AWS_Tests/AwsConfigTests.cs b/src/IoTHub.Portal.Tests.Unit/Infrastructure/Services/AWS_Tests/AwsConfigTests.cs
index 853dbe2cc..c28364709 100644
--- a/src/IoTHub.Portal.Tests.Unit/Infrastructure/Services/AWS_Tests/AwsConfigTests.cs
+++ b/src/IoTHub.Portal.Tests.Unit/Infrastructure/Services/AWS_Tests/AwsConfigTests.cs
@@ -246,7 +246,7 @@ public async Task GetAllDeploymentComponentsShouldRetreiveImageUriAndEnvironment
         }
 
         [Test]
-        public async Task DeleteDeploymentShouldDeleteTheDeploymentVersionAndAllItsComponentsVersions()
+        public async Task DeleteDeploymentShouldDeleteTheDeploymentVersionAndAllItsComponentsVersionsAndDeprecateItsThingType()
         {
             //Act
             var edge = Fixture.Create<IoTEdgeModel>();
@@ -266,6 +266,12 @@ public async Task DeleteDeploymentShouldDeleteTheDeploymentVersionAndAllItsCompo
                     }
                 });
 
+            _ = this.mockIotClient.Setup(s3 => s3.DeprecateThingTypeAsync(It.IsAny<DeprecateThingTypeRequest>(), It.IsAny<CancellationToken>()))
+                .ReturnsAsync(new DeprecateThingTypeResponse
+                {
+                    HttpStatusCode = HttpStatusCode.OK
+                });
+
             _ = this.mockGreengrasClient.Setup(s3 => s3.GetComponentAsync(It.IsAny<GetComponentRequest>(), It.IsAny<CancellationToken>()))
                 .ReturnsAsync(new GetComponentResponse
                 {