Olena Huang I think you are missing the point made by @sollmsen. The person was referring to "migration" not "backup/restore". If Microsoft is not able to reconcile stepping on its own toes with its own products, fine it's the status quo as far as I'm concerned, but we do ask you think outside of the box and your own choices. Backup/Restore and it's constraints are NOT A SUITABLE MIGRATION SOLUTION! Think how to solve that problem for the Billions of users who change phones every 12/24 month cycles. Compared with Google Authenticator (GA) your solution sucks (coming from an IT/Microsoft professional). I migrated my GA account in three steps; 1) Go to settings. 2) Select "transfer accounts". 3) Scan the QR code generated by the GA app on the old phone with the GA app on the new phone. DONE! Run us through your solution for achieving the same again?
P.S. this board doesn't even have a post edit function to allow to edit typos post publishing. Much to improve Pernille-Eskebo