Talk:FAQ/@comment-43424681-20200115193546/@comment-75.168.81.134-20200116172651

Having a DMM account and syncing your data is important to ensure that you don't potentially lose your progress should something happen to your device(s) in the future. If something should happen to the device you're playing on, and you don't have that data backed up, you'll probably have to start over from scratch again.