组消息订阅图API

Question

我们要订阅邮件组，并接收来自该组所有用户的通知。组已创建。但是尝试订阅群组邮件时出现错误。

{
   “changeType”: “created”,
   “notificationUrl”: “/notification“,
   “resource”: “/users/web@blabla.com/mailFolders(‘Inbox’)/messages”,
   “expirationDateTime”:“2018-12-28T18:23:45.9356913Z”,
   “clientState”: “secretClientValue”
}

{
   “error”: {
      “code”: “ExtensionError”,
      “message”: “Operation: Create; Exception: [Status Code: NotFound; Reason: Not Found]“,
      “innerError”: {
         “request-id”: “95af9c20-f395-49dd-a48c-491bc73a1344”,
         “date”: “2018-12-27T17:34:29”
      }
   }
}