microsoft-graph-api - MS Graph 添加订阅返回 ExtensionError 和 ServiceUnavailable

Question

尝试使用 MS Graph ( https://graph.microsoft.com/v1.0/subscriptions ) 在我的一些客户日历上创建订阅时，一些用户收到此错误

{
  "error": {
    "code": "ExtensionError",
    "message": "Operation: Create; Exception: [Status Code: ServiceUnavailable; Reason: Target resource 'xxxx-xxx-xxx-xxxx' hosted on database 'xxxx-xxx-xxx-xxxx' is currently on backend 'Unknown']",
    "innerError": {
      "date": "2020-11-27T00:12:53",
      "request-id": "xxxx-xxx-xxx-xxxx",
      "client-request-id": "xxxx-xxx-xxx-xxxx"
    }
  }
}

文档https://docs.microsoft.com/en-us/graph/errors表明 ExtensionError 表示用户日历位于本地 Exchange 服务器上，但我能够读取和写入用户日历的事件，所以我认为情况并非如此。还有其他建议吗？

标签： microsoft-graph-apiexchange-server