Is there a way to change how Teams pulls it's log in information?
We have a company domain - internal.companyA.co.uk but use a completely different suffix companyB.com for email via 365.
When Teams loads and attempts to sign in, it is trying to use the internal domain account - email@example.comA.co.uk as default.
Is there a way to change this behaviour across all users so that Teams automatically pulls the new email address from Outlook?
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@stewietm Hey, as far as I know Teams will always try and log into the domain-joined PC account. But you can use the following registry key to turn off pre-population of the UPN in the sign-in prompt.
Computer\HKEY_CURRENT_USER\Software\Microsoft\Office\TeamsSkipUpnPrefill (REG_DWORD) 0x00000001 (1)
For reference and guidance.
'Teams will always log into the domain-joined PC account'
'Sign in to Microsoft Teams using modern authentication'