Authorization grants an app the permission to call an API. Your app needs authorization for an API before calling it. At the public beta stage, the API service provider establishes the permission relationship between an app and API.
At the public beta stage, the API service provider establishes the authorization. You must provide the API service provider with your AppID or Alibaba Mail account to indicate that an app is given for authorization. After authorization, you can use this app to call the API.
At the public beta stage, you do not have permission to establish or revoke authorization. You can only view the authorized APIs under an app on the console. If you need to revoke the authorization for an API, contact the API service provider.