The maintenance schedule was posted Saturday at 12:00pm (PDT). We published the schedule on the support website, Twitter, and within the Blizzard launcher.
When logging into the Blizzard launcher you would see the message:
We will be performing scheduled maintenance beginning on Monday, March 28th at 06:00 (PDT). During this time, you may encounter slow or failed logins and be unable to complete purchases in-game and through the Battle.net Shop. We expect the service to be fully available again at approximately 12:00 (PDT).
If you missed it during login (or if you were already logged in) then it would also have been visible as a Yellow Alert icon in the top right corner of the launcher next to your BattleTag (
).
It was not posted into the WOW specific sections of the launcher because it was not a WOW specific maintenance. It’s an overall Battle.net maintenance affecting all Blizzard games.
However, this morning we saw some players confused about this maintenance and so we posted a message directly into the WOW specific sections of the launcher as well.