https://community.teamviewer.com/English/discussion/136147/this-account-uses-third-party-authentication-please-switch-to-the-new-interface-and-sign-in-using-y
This account uses third-party authentication. Please switch to the new interface and sign in using...
This account uses third-party authentication. Please switch to the new interface and sign in using your third-party account provider.
switch to the new interface