Shared mailbox in Outlook insider on iOS

[Par Linderoth]

I have the insider version of Outlook installed on my iPhone. When trying to add a shared mailbox I get an error message (Authentication failed). I am able to add it in the desktop app and open it online so I definitely have the right permissions. Our tenant is setup with MFA, ADFS and pin to open Outlook on iOS (through Intune policies). Anyone else experiencing same issue?

[#2]

Did you find a solution eventually?

[#3]

@rajutvs It has been working for a long time now. I had those issues so long time ago that I don't remember if I found a solution or if it just started to work after a version upgrade of the iOS app.