# WorkflowExecutionSignaledEventAttributes
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Provides the details of the `WorkflowExecutionSignaled` event.

## Contents
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 ** signalName **   <a name="SWF-Type-WorkflowExecutionSignaledEventAttributes-signalName"></a>
The name of the signal received. The decider can use the signal name and inputs to determine how to the process the signal.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 256.  
Required: Yes

 ** externalInitiatedEventId **   <a name="SWF-Type-WorkflowExecutionSignaledEventAttributes-externalInitiatedEventId"></a>
The ID of the `SignalExternalWorkflowExecutionInitiated` event corresponding to the `SignalExternalWorkflow` decision to signal this workflow execution.The source event with this ID can be found in the history of the source workflow execution. This information can be useful for diagnosing problems by tracing back the chain of events leading up to this event. This field is set only if the signal was initiated by another workflow execution.  
Type: Long  
Required: No

 ** externalWorkflowExecution **   <a name="SWF-Type-WorkflowExecutionSignaledEventAttributes-externalWorkflowExecution"></a>
The workflow execution that sent the signal. This is set only of the signal was sent by another workflow execution.  
Type: [WorkflowExecution](API_WorkflowExecution.md) object  
Required: No

 ** input **   <a name="SWF-Type-WorkflowExecutionSignaledEventAttributes-input"></a>
The inputs provided with the signal. The decider can use the signal name and inputs to determine how to process the signal.  
Type: String  
Length Constraints: Maximum length of 32768.  
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/swf-2012-01-25/WorkflowExecutionSignaledEventAttributes) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/swf-2012-01-25/WorkflowExecutionSignaledEventAttributes) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/swf-2012-01-25/WorkflowExecutionSignaledEventAttributes)