Getting Forbidden Error in Microsoft ToDo Tasks create subscription Graph API

Question

When creating subscription using Graph API, we are getting the below error even if we have enough permission in access token.

Token permissions: Calendars.ReadWrite Contacts.ReadWrite Tasks.ReadWrite User.Read profile openid email

{
  "error": {
    "code": "ExtensionError",
    "message": "Operation: Create; Exception: [Status Code: Forbidden; Reason: Access is denied to the requested resource. The user might not have enough permission.]",
    "innerError": {
        "date": "2022-11-30T08:23:03",
        "request-id": "0541655d-83f3-456e-af47-165caf259c76",
        "client-request-id": "0541655d-83f3-456e-af47-165caf259c76"
    }
  }
}

Details used:

Request url :

POST https://graph.microsoft.com/v1.0/subscriptions 

Request body:

{
    "notificationUrl":"<development-url>/notifications/office365/graph/v1",
    "expirationDateTime":"2022-12-03T06:48:06Z",
    "resource":"/me/todo/lists/{taskListId}/tasks",
    "changeType":"created,updated,deleted",
    "clientState":"<client-state>"
}

API used - https://graph.microsoft.com/v1.0/subscriptions (Microsoft documentation)

Issue affected users count - 190

Answer 1

As per the doc to create the subscription for todoTask , User must have Tasks.ReadWrite deligated permission ,its not supported for application permission , could you please check what permission you have ?

Hope this helps

Thanks