How to resolve this error when trying to log in to Battle.net
Based on your location, children under a certain age cannot own a Battle.net account.
Troubleshooting for issues loading the BattleTag or Real ID friend list
How to update the secret question in your Battle.net account
How to unlink a Playstation Network, Xbox Live, or Nintendo Switch account from a Battle.net account
A BattleTag™ is a player-chosen nickname that identifies your Battle.net account
Information on how to create a Battle.net Account for yourself or on behalf of your child
Information about the Cross-Play and Cross-Progression features
What to do if you cannot see your recent BattleTag name change in-game