# UserStackAssociation
<a name="API_UserStackAssociation"></a>

Describes a user in the user pool and the associated stack.

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

 ** AuthenticationType **   <a name="WorkSpacesApplications-Type-UserStackAssociation-AuthenticationType"></a>
The authentication type for the user.  
Type: String  
Valid Values: `API | SAML | USERPOOL | AWS_AD`   
Required: Yes

 ** StackName **   <a name="WorkSpacesApplications-Type-UserStackAssociation-StackName"></a>
The name of the stack that is associated with the user.  
Type: String  
Length Constraints: Minimum length of 1.  
Required: Yes

 ** UserName **   <a name="WorkSpacesApplications-Type-UserStackAssociation-UserName"></a>
The email address of the user who is associated with the stack.  
Users' email addresses are case-sensitive.
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 128.  
Pattern: `[\p{L}\p{M}\p{S}\p{N}\p{P}]+`   
Required: Yes

 ** SendEmailNotification **   <a name="WorkSpacesApplications-Type-UserStackAssociation-SendEmailNotification"></a>
Specifies whether a welcome email is sent to a user after the user is created in the user pool.  
Type: Boolean  
Required: No

## See Also
<a name="API_UserStackAssociation_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/appstream-2016-12-01/UserStackAssociation) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/appstream-2016-12-01/UserStackAssociation) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/appstream-2016-12-01/UserStackAssociation)