# PhysicalResourceIdContextKeyValuePair


Context information that enables CloudFormation to uniquely identify a resource. CloudFormation uses context key-value pairs in cases where a resource's logical and physical IDs aren't enough to uniquely identify that resource. Each context key-value pair specifies a resource that contains the targeted resource.

## Contents


 ** Key **   
The resource context key.  
Type: String  
Required: Yes

 ** Value **   
The resource context value.  
Type: String  
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/cloudformation-2010-05-15/PhysicalResourceIdContextKeyValuePair) 
+  [Amazon SDK for Java V2](https://docs.amazonaws.cn/goto/SdkForJavaV2/cloudformation-2010-05-15/PhysicalResourceIdContextKeyValuePair) 
+  [Amazon SDK for Ruby V3](https://docs.amazonaws.cn/goto/SdkForRubyV3/cloudformation-2010-05-15/PhysicalResourceIdContextKeyValuePair)