Quote Originally Posted by Rahsch View Post
What about PS4 digital? I've only got an e-mail for proof of purchase but no codes?

Is it because my PSN is attached to my XIV account that I don't have to worry about pre-order or Heavensward codes?
Correct. If you bought it on the PS4 through PSN, then it is already linked to your square enix members account. No need to do anything further, you are good to go for early access and release.