Larian Studios Forums Divinity - Original Sin Divinity - Original Sin - General Question regarding the CE and early access code

Hey,

So i've bought the CE from the larianvault and it hasn't arrived yet. Meanwhile i got an early access code and i can play the game right now using it. The question is. When i do get my CE can i overrite this current code on steam? Or how do i proceed to upgrade this code to the CE version and get the bonus copy for a friend?

Thanks!