Player preferences are the stored player profile information that persists between game sessions. It’s the session token and user id that is stored for later use.

If a player profile with preferences attempts to sign in anonymously, authentication instead opts for a session token sign-in and attempts to revitalize the player’s previous session. If the session has expired, the sign-in attempt responds with a failure, and removes the stored player preferences,invoking a state change delegate for another sign-in attempt.