Graph Subscription Created but Notifications Not Being Sent

问题

My GraphServiceClient subscription was created on my user and I receive a successful response:

{
  "resource": "users/me@my.domain.com/events",
  "changeType": "created,updated",
  "clientState": "baedacff-7b53-4aca-81b8-20f9fff68618",
  "notificationUrl": "https://my.domain.com/notification/listen",
  "expirationDateTime": "2018-04-27T17:57:16.0115964+00:00",
  "id": "f4090189-2d12-45a0-9ad2-77c3595b07b4",
  "@odata.context": "https://graph.microsoft.com/v1.0/$metadata#subscriptions/$entity"
}

However, although the exact same code was working yesterday, today no notifications are sent to my endpoint.

I have no idea what to look at to see why this isn't working as the subscription says it was created, simply O365 is NOT sending any notifications.

How can I debug this?

回答1:

I believe this issue was caused by some sort of throttling done by O365. We have not experienced it since and we are creating subscriptions for hundreds of users in O365. If you are creating subscriptions and not getting notifications, I suggest deleting your subscriptions, waiting a day or two and creating them again.

来源：https://stackoverflow.com/questions/50068294/graph-subscription-created-but-notifications-not-being-sent