# StartRecommendations
<a name="API_StartRecommendations"></a>

**Important**  
 End of support notice: On May 20, 2026, AWS will end support for AWS DMS Fleet Advisor;. After May 20, 2026, you will no longer be able to access the AWS DMS Fleet Advisor; console or AWS DMS Fleet Advisor; resources. For more information, see [AWS DMS Fleet Advisor end of support](https://docs.aws.amazon.com/dms/latest/userguide/dms_fleet.advisor-end-of-support.html). 

Starts the analysis of your source database to provide recommendations of target engines.

You can create recommendations for multiple source databases using [BatchStartRecommendations](https://docs.aws.amazon.com/dms/latest/APIReference/API_BatchStartRecommendations.html).

## Request Syntax
<a name="API_StartRecommendations_RequestSyntax"></a>

```
{
   "DatabaseId": "string",
   "Settings": { 
      "InstanceSizingType": "string",
      "WorkloadType": "string"
   }
}
```

## Request Parameters
<a name="API_StartRecommendations_RequestParameters"></a>

For information about the parameters that are common to all actions, see [Common Parameters](CommonParameters.md).

The request accepts the following data in JSON format.

 ** [DatabaseId](#API_StartRecommendations_RequestSyntax) **   <a name="DMS-StartRecommendations-request-DatabaseId"></a>
The identifier of the source database to analyze and provide recommendations for.  
Type: String  
Required: Yes

 ** [Settings](#API_StartRecommendations_RequestSyntax) **   <a name="DMS-StartRecommendations-request-Settings"></a>
The settings in JSON format that Fleet Advisor uses to determine target engine recommendations. These parameters include target instance sizing and availability and durability settings. For target instance sizing, Fleet Advisor supports the following two options: total capacity and resource utilization. For availability and durability, Fleet Advisor supports the following two options: production (Multi-AZ deployments) and Dev/Test (Single-AZ deployments).  
Type: [RecommendationSettings](API_RecommendationSettings.md) object  
Required: Yes

## Response Elements
<a name="API_StartRecommendations_ResponseElements"></a>

If the action is successful, the service sends back an HTTP 200 response with an empty HTTP body.

## Errors
<a name="API_StartRecommendations_Errors"></a>

For information about the errors that are common to all actions, see [Common Error Types](CommonErrors.md).

 ** AccessDeniedFault **   
 AWS DMS was denied access to the endpoint. Check that the role is correctly configured.    
 ** message **   

HTTP Status Code: 400

 ** InvalidResourceStateFault **   
The resource is in a state that prevents it from being used for database migration.    
 ** message **   

HTTP Status Code: 400

 ** ResourceNotFoundFault **   
The resource could not be found.    
 ** message **   

HTTP Status Code: 400

## See Also
<a name="API_StartRecommendations_SeeAlso"></a>

For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS Command Line Interface V2](https://docs.aws.amazon.com/goto/cli2/dms-2016-01-01/StartRecommendations) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/dms-2016-01-01/StartRecommendations) 
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/dms-2016-01-01/StartRecommendations) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/dms-2016-01-01/StartRecommendations) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/dms-2016-01-01/StartRecommendations) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/dms-2016-01-01/StartRecommendations) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/dms-2016-01-01/StartRecommendations) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/dms-2016-01-01/StartRecommendations) 
+  [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/dms-2016-01-01/StartRecommendations) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/dms-2016-01-01/StartRecommendations)