If you elected to use your free boost token that comes with the purchase of some versions of Shadowlands, you'll start at level 50 and have an introductory chain of quests that get you up to speed with your current specialization and then rolling into Shadowlands' main questing experience.
Once your character is made, you can log in and start playing. If you elected to use your free boost token that comes with the purchase of some versions of Shadowlands, you'll start at level 50 and have an introductory chain of quests that get you up to speed with your current specialization and then rolling into Shadowlands' main questing experience.