In November 2020, we published a blog post for our developer community and another for IT Pros, announcing our plan to deprecate the Outlook REST API v2.0 & Beta endpoints.
Based on customer signal...
Published Nov 23, 2022
Version 1.0
Blog Post
Now with the deactivation of Graph API for On-Premise and the planned deprecation of the /API endpoint for On-Premise systems, what is the "correct" way of creating an Outlook Calendar entry with a Teams meeting for an On-Premise mailbox programmatically?
Sure I can create an Outlook Calendar entry via EWS, but EWS doesn't allow to create a Teams meeting from it. Right now I could create a Teams meeting with Graph, but you'll disable this possibility in March. Even when I have the Teams link created, I can't "update" the calendar entry via EWS to attach the link in the meeting.
Right now it seems to be possible to do this with the /API endpoint. I can create a calendar entry with EWS and then update it with the /API endpoint to create a teams meeting for this entry and attach it correctly to the entry.
How can I continue my migration efforts without an alternative way to create a working Teams meeting for a calendar entry in an On-Premise mailbox?