Microsoft Graph Subscription ExtensionError - Delete / Update

Question

Issue

• I currently have an Azure Active Directory Application that has a Microsoft Graph Webhook Subscription listening for new emails (messages) in a specifi

Answer 1

== Update ==

• The subscription in question has now expired and disappeared from my application's subscriptions list (timestamp, PST: 3/22/2019 8:45:22 AM).

• I will no longer be able to test against it (sorry S.O. posterity!).

• However, good news: now that the problem child (subscription) in question is gone, I was able to create a new subscription and restart my affected service. I am able to successfully submit get / update / delete requests against any newly created subscriptions.

As this post is almost a year old and was most likely resolved via a fix by MSFT (no actionable fixes in our implementations), I am marking this post as "answered".

@baywet Thank you for the suggestion to do so.