# MissingLoopControllerNodeFlowValidationDetails
<a name="API_agent_MissingLoopControllerNodeFlowValidationDetails"></a>

Details about a flow that's missing a required `LoopController` node in a DoWhile loop.

## Contents
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 ** loopNode **   <a name="bedrock-Type-agent_MissingLoopControllerNodeFlowValidationDetails-loopNode"></a>
The DoWhile loop in a flow that's missing a required `LoopController` node.  
Type: String  
Pattern: `[a-zA-Z]([_]?[0-9a-zA-Z]){1,50}`   
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/bedrock-agent-2023-06-05/MissingLoopControllerNodeFlowValidationDetails) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/bedrock-agent-2023-06-05/MissingLoopControllerNodeFlowValidationDetails) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/bedrock-agent-2023-06-05/MissingLoopControllerNodeFlowValidationDetails)