# Principal
<a name="API_Principal"></a>

Provides user and group information used for filtering documents to use for generating Amazon Q Business conversation responses.

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

**Important**  
This data type is a UNION, so only one of the following members can be specified when used or returned.

 ** group **   <a name="qbusiness-Type-Principal-group"></a>
 The group associated with the principal.  
Type: [PrincipalGroup](API_PrincipalGroup.md) object  
Required: No

 ** user **   <a name="qbusiness-Type-Principal-user"></a>
The user associated with the principal.  
Type: [PrincipalUser](API_PrincipalUser.md) object  
Required: No

## See Also
<a name="API_Principal_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/qbusiness-2023-11-27/Principal) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/qbusiness-2023-11-27/Principal) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/qbusiness-2023-11-27/Principal)