# RegistrationMetadataItem
<a name="API_RegistrationMetadataItem"></a>

Reserved for internal use.

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

 ** Key **   <a name="systemsmanager-Type-RegistrationMetadataItem-Key"></a>
Reserved for internal use.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 128.  
Pattern: `^(?!\s*$).+`   
Required: Yes

 ** Value **   <a name="systemsmanager-Type-RegistrationMetadataItem-Value"></a>
Reserved for internal use.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 2048.  
Pattern: `^(?!\s*$).+`   
Required: Yes

## See Also
<a name="API_RegistrationMetadataItem_SeeAlso"></a>

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/ssm-2014-11-06/RegistrationMetadataItem) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/ssm-2014-11-06/RegistrationMetadataItem) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/ssm-2014-11-06/RegistrationMetadataItem)