Invalid code when registering for full game.

[handisnacks]

I had no problems once I used the real code. You cannot use the same code you used for early access. See my post, unfortunately it only works if you bought it from SE directly:
http://forum.square-enix.com/ffxiv/t...y-digital-only

[Boomstar]

It finally worked. Man this is going to go down as one of the worst launches in history.