# UpdatedCustomMetadataMap
<a name="API_UpdatedCustomMetadataMap"></a>

The custom metadata patch wrapper. Omit to leave the existing metadata unchanged; supply with a null value to clear all metadata; supply with key-value pairs to replace the existing metadata.

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

 ** optionalValue **   <a name="agentregistrycontrol-Type-UpdatedCustomMetadataMap-optionalValue"></a>
The value to set for this field. Omit the wrapper to leave the field unchanged.  
Type: JSON value  
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\+\+](https://docs.aws.amazon.com/goto/SdkForCpp/agent-registry-control-2025-12-01/UpdatedCustomMetadataMap) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/agent-registry-control-2025-12-01/UpdatedCustomMetadataMap) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/agent-registry-control-2025-12-01/UpdatedCustomMetadataMap)