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bmedenwald's avatar
bmedenwald
Copper Contributor
May 22, 2024

Teams App Won't Authenticate in New Outlook

I have a Teams app that is about to be upgraded to the new manifest so it will run in Outlook. I uploaded the app to test it, and in the old Outlook it works fine. I can see the interface, click the ...
outlook
Kidd_Ip's avatar
Kidd_Ip
MVP
Aug 04, 2024

bmedenwald 

 

Better to check with Microsoft support but at least new Outlook has its own moves, it prefers web browsers for authentication to my understanding

bmedenwald's avatar
bmedenwald
Copper Contributor
Aug 04, 2024

Kidd_Ip That cannot be true. If it is, then Microsoft Teams JS 2.0 is completely broken. It relies exclusively on a popup for authentication in the app itself. Works in old Outlook, old Teams, new Teams.

  • bmedenwald's avatar
    bmedenwald
    Copper Contributor
    Aug 08, 2024

    For everyone's knowledge, our integration is out there now and just as broken.

     

    Works in:

    - Old Outlook

    - Old Teams

    - New Teams

    - Microsoft 365

    - Teams in the web browser

     

    But, it does not work in "New" Outlook. Steps to reproduce:

     

    - Hop into "New" Outlook on Windows

    - Find the "Simple In/Out" app in the App Store

    - When you go to the tab, there is a button to sign in. This button MUST pop up a window inside Outlook for Teams JS 2.x to authenticate. If you click that button to Log In and get shoved to a web browser, that's the bug because Microsoft's Teams JS requires a method be called in the app itself to trigger the end of the authentication cycle.

     

    If you don't understand how this works, please follow the same steps above inside Teams and see how it is supposed to work.

     

    I now have customers complaining because it's getting hard to downgrade to old Outlook. HELP!

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