# ConversationSource
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The source reference for an existing attachment in an existing conversation.

## Contents
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 ** attachmentId **   <a name="qbusiness-Type-ConversationSource-attachmentId"></a>
The unique identifier of the Amazon Q Business attachment.  
Type: String  
Pattern: `[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12}`   
Required: Yes

 ** conversationId **   <a name="qbusiness-Type-ConversationSource-conversationId"></a>
The unique identifier of the Amazon Q Business conversation.  
Type: String  
Length Constraints: Fixed length of 36.  
Pattern: `[a-zA-Z0-9][a-zA-Z0-9-]{35}`   
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/qbusiness-2023-11-27/ConversationSource) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/qbusiness-2023-11-27/ConversationSource) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/qbusiness-2023-11-27/ConversationSource)