How to set up the same Authenticator on more than one device.
What to do if you receive this error on the mobile Battle.net app
What to do if you don't receive texts from Blizzard
Information regarding managing an Authenticator and the migration of the Battle.net Authenticator to the Battle.net Mobile App
Troubleshooting steps for missing notifications on the Battle.net Mobile App
Troubleshooting steps for disconnection problems with the Battle.net mobile app
How to resolve this error when attempting to set up the authenticator in the Battle.net mobile app.
What to do if you can't resync your authenticator.
Minimum system requirements for the Battle.net Mobile App.
What to do if you get a "Something went wrong" error when logging in to the Battle.net Mobile App