UPN mismatch and Teams

sanka perera 121 Reputation points
2022-04-27T04:08:51.253+00:00

Hi All,

We have Teams tenant setup without federation and Telephony.

i have a major concern in UPN setup in our environment.

currently UPN is set up as employeeid@publicdomain.com
SMTP= firstnamelastname@publicdomain.com

i would like to know what could be the impact if didn't change the UPN similar to SMTP

is it must to have UPN=SMTP=SIP?
For Teams meeting rooms is it must to have UPN=SMTP?

what are the other issues if we didn't change the UPN similar to SMTP

Microsoft Teams
Microsoft Teams
A Microsoft customizable chat-based workspace.
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