# Tag


A tag is a key-value pair that is used to manage the resource.

## Contents


 ** key **   <a name="CodePipeline-Type-Tag-key"></a>
The tag's key.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 128.  
Required: Yes

 ** value **   <a name="CodePipeline-Type-Tag-value"></a>
The tag's value.  
Type: String  
Length Constraints: Minimum length of 0. Maximum length of 256.  
Required: Yes

## See Also


For more information about using this API in one of the language-specific Amazon SDKs, see the following:
+  [Amazon SDK for C\$1\$1](https://docs.amazonaws.cn/goto/SdkForCpp/codepipeline-2015-07-09/Tag) 
+  [Amazon SDK for Java V2](https://docs.amazonaws.cn/goto/SdkForJavaV2/codepipeline-2015-07-09/Tag) 
+  [Amazon SDK for Ruby V3](https://docs.amazonaws.cn/goto/SdkForRubyV3/codepipeline-2015-07-09/Tag)