# Enable a user

**PUT /groups/{groupId}/apps/{appId}/users/{userId}/enable**

Enable a [user](https://www.mongodb.com/zh-cn/docs/atlas/app-services/authentication).


## Servers
- The root API resource and starting point for the App Services API.: https://services.cloud.mongodb.com/api/admin/v3.0 (The root API resource and starting point for the App Services API.)


## Authentication methods
- Token auth


## Parameters

### Path parameters
- **groupId** (string)
  An Atlas [Project/Group
  ID](https://docs.atlas.mongodb.com/tutorial/manage-projects/).
- **appId** (string)
  The ObjectID of your application.
  [The App Services API Project and Application IDs section](#section/Project-and-Application-IDs) demonstrates how to find this
  value.
- **userId** (string)
  User Account ID



## Responses
### 204
Successfully enabled.


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