Authentication, SSO, and Microsoft Graph in Microsoft Teams Tabs: An End-To-End Tutorial

David JOURAND we are facing the same issue. Adrian Solis Would be great if this blog would get updated. The Application Registration Portal has been depreciated which makes me doubt whether this is still the way to go. We have followed the instructions but the only way we seem to get this to work (in the Rich client) is by presenting a login button, SSO simply does not work. When using the button I need to re-authenticate again after a couple of days; it is simply not a user friendly way of going about it. I'm also unsure if this works flawlessly since the Custom Tabs DevOps presents also require a user to login.

Furthermore I have seen new possibilities shown in the video below

https://www.youtube.com/watch?v=xLjT1Hw5a1E&t=39s

(The relevant part is at 24m29s). Is this available yet?! If yes, where is the documentation...if not when will it be (and where can I check it for availability)