Information about this error when trying to log in
How to claim a code for a game, a product, or Blizzard Balance.
Information on the Diablo III Account Ban or Suspension, and how to appeal the decision.
How to resolve being unable to log in due to this error
Based on your location, children under a certain age cannot have a Battle.net account.
A community site or app throws a 404 error when attempting to login via B.net or when accessing your Battle.net data.
Information on why your gamer tag is different than your BattleTag while in Call of Duty: Modern Warfare.
Troubleshooting steps for linking a Twitch.tv account with a Battle.net account.
Some games require that you add a phone number to your Battle.net account