# Remove custom data key

Remove a single key from the user's custom data. **Required permissions**: `apps:edit`, `[appId]:edit`, `users:edit`.

Endpoint: DELETE /v1/users/{user_id}/custom_data/{key}
Security: ClientAccessToken

## Security:

  - `ClientAccessToken` (unknown)
    oauth2

## Path parameters:

  - `user_id` (string, required)
    The ID of the user

  - `key` (string, required)
    The custom data key to remove

## Response 204:

  - `204` (unknown)
    The custom data key has been removed

## Response 404 fields (application/json):

  - `message` (string, required)

  - `error_code` (number, required)
    Example: 404