Right now we have two entry points for authentication, one for a launcher (using xsolla) and one in-game (playfab sdk). The xsolla launcher pushes a JWT with the playfab ID and playfab session ticket for authenticated users. The playfab SDK by default only sets those variables if you authenticate the user through the login methods provided by it.
Is there a way to set the client session ticket without calling the "Login" function?