Teams on Mac with external users often shows "Unknown User"

Copper Contributor

I have an M1 Mac which has multiple external teams where users often show up as "Unknown User".  Doesn't happen on my intel Mac, my iphone, or the web version.  I have cleared my MS Teams cache, and re-installed the app on the M1 Mac.

1 Reply

Hi @ChargerDad,

the issue you are having can be connected directly to the TM722470 Service Health issue (Advisory) in Microsoft 365 admin center:



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Leon Pavesic