# WorkflowExecution
<a name="API_WorkflowExecution"></a>

Represents a workflow execution.

## Contents
<a name="API_WorkflowExecution_Contents"></a>

 ** runId **   <a name="SWF-Type-WorkflowExecution-runId"></a>
A system-generated unique identifier for the workflow execution.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 64.  
Required: Yes

 ** workflowId **   <a name="SWF-Type-WorkflowExecution-workflowId"></a>
The user defined identifier associated with the workflow execution.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 256.  
Required: Yes

## 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/swf-2012-01-25/WorkflowExecution) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/swf-2012-01-25/WorkflowExecution) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/swf-2012-01-25/WorkflowExecution)