Good afternoon, I hope you're doing well today. In our latest public release there is a Disable button for the 2FA functionality when impersonating the user account, so you could use this to turn off 2FA for the user so that they can get set up on their new device:
So, you will need to impersonate to see the option, but once inside the user's account you can quickly turn it off from there. I hope this helps! :-)
Kyle Kerst
IT Coordinator
SmarterTools Inc.
www.smartertools.com