I have a commercial license, and one of my users deleted the 2FA software and lost their 2FA recovery code.
I deleted their user so I could [User Management] -> [Add User]. This gives the error "This e-mail address is already in use".
The user cannot access Teamviewer or get a "resend email" authorization. What do I do to get this user added back?
if the situation is the one you indicated, unfortunately there are no community solutions that are right for you.
Here, first reply, you can find same response.