# IdMappingWorkflowOutputSource
<a name="API_IdMappingWorkflowOutputSource"></a>

The output source for the ID mapping workflow.

## Contents
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 ** outputS3Path **   <a name="API-Type-IdMappingWorkflowOutputSource-outputS3Path"></a>
The S3 path to which AWS Entity Resolution will write the output table.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 1024.  
Pattern: `s3://[a-z0-9][\.\-a-z0-9]{1,61}[a-z0-9](/.*)?`   
Required: Yes

 ** KMSArn **   <a name="API-Type-IdMappingWorkflowOutputSource-KMSArn"></a>
Customer AWS KMS ARN for encryption at rest. If not provided, system will use an AWS Entity Resolution managed KMS key.  
Type: String  
Pattern: `arn:aws:kms:.*:[0-9]+:.*`   
Required: No

## See Also
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For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/entityresolution-2018-05-10/IdMappingWorkflowOutputSource) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/entityresolution-2018-05-10/IdMappingWorkflowOutputSource) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/entityresolution-2018-05-10/IdMappingWorkflowOutputSource)