# UserAlias
<a name="API_UserAlias"></a>

Aliases attached to a user id within an Amazon Q Business application.

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

 ** userId **   <a name="qbusiness-Type-UserAlias-userId"></a>
The identifier of the user id associated with the user aliases.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 2048.  
Required: Yes

 ** dataSourceId **   <a name="qbusiness-Type-UserAlias-dataSourceId"></a>
The identifier of the data source that the user aliases are associated with.  
Type: String  
Length Constraints: Fixed length of 36.  
Pattern: `[a-zA-Z0-9][a-zA-Z0-9-]{35}`   
Required: No

 ** indexId **   <a name="qbusiness-Type-UserAlias-indexId"></a>
The identifier of the index that the user aliases are associated with.  
Type: String  
Length Constraints: Fixed length of 36.  
Pattern: `[a-zA-Z0-9][a-zA-Z0-9-]{35}`   
Required: No

## 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/UserAlias) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/qbusiness-2023-11-27/UserAlias) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/qbusiness-2023-11-27/UserAlias)