Go to your Microsoft account security settings and add a new MFA method with the new phone.
I have account on my authenticator app from another phone that does not show up in my another phone.
Eiger
10
Reputation points
I add a Heroku acct in my authenticator in my old phone. Now i have new phone with other accounts added, it is not showing Heroku in there. How do i pit heroku in my new phone's authenticator. Pls help