Microsoft Graph API：订阅MailboxSettings

Question

Is it possible to subscribe to changes of MailboxSettings - specifically AutomaticRepliesSetting?

Trying to POST this to /subscriptions on the beta API.

{
   "changeType":"updated",
   "notificationUrl":"https://example.com/microsoft/notify",
   "resource":"users/karel@example.com/mailboxSettings",
   "expirationDateTime":"2018-05-11T08:05:26.6920740Z",
   "clientState":"QUUvRXJ5beHI9VEvn6hq"
}

Getting back:

"code": "ExtensionError",     
"message": "Operation: Create; Exception: [Status Code: Forbidden; Reason: Forbidden]"

The application has admin consent for Calendars.ReadWrite , User.Read.All and MailboxSettings.ReadWrite

I can successfully subscribe to calendar changes, so nothing is wrong with the implementation.

Subscribing to the root /users/karel@example.com endpoint gives:

{
  "error": {
    "code": "ExtensionError",
    "message": "Operation: Create; Exception: [Status Code: InternalServerError; Reason: Internal Server Error]",
    "innerError": { "request-id": "3caffc72-9507-4bb7-9eab-56e8ecaaab83", "date": "2018-05-08T09:22:16" }
  }
}

Answer 1

This isn't supported. From the documentation :

Using the Microsoft Graph REST API, an app can subscribe to changes on the following resources:

• Messages
• Events
• Contacts
• Users
• Groups
• Group conversations
• Content shared on OneDrive including drives associated with SharePoint sites
• User's personal OneDrive folders