I wanted to transfer my characters over from battle.net and I went to set up cross save, and when I got to the menu it automatically linked my battle.net. The problem is, it was the wrong account and I went to unlink it and the button is grayed out. What do I need to do to get the right account linked?
In order to unlink an account from your Bungie.net Settings Accounts & Linking section, you must log out of Bungie.net and then log in with a different attached account. You cannot unlink the account you're currently logged in with. If you have, for example, a Valve Steam account and a Blizzard Battle.net account attached to your profile, you'll need to log out, then log in using the Steam credentials in order to unlink the Battle.net ID.