Invalid code after purchasing Endwalker

[Fayt1203]

If you purchase through the SE Store, you get the early access bonus code when the pre-order is made. About 4 weeks before the official release date, they'll send you an email stating they're about to charge your payment source for the expansion purchase. The second code that is the actual game activation key is usually available for retrieval on the SE store about the same time early access starts.

A notice will be posted on the Lodestone telling players who have pre-ordered when early access will end (for Shadowbringers it ended 3 days after official launch date). To continue playing expansion content past that date, they will need to enter their game key on Mogstation. Those who didn't pre-order will of course need to enter the game key before they can access the expansion content at all.

Looking at my email history for Shadowbringers pre-order:

June-6-2019: email notification that SE would be starting processing of purchase charges on Jun-7 (and my credit card did get charged on that date)

Same date: second email confirming purchase with link to invoice and to store page for obtaining the game (expansion) activation key. The key was not available yet when I received the email but I vaguely remember it being able to get it when early access started.

This^^ also there is an option too debit now if people want to buy it now or are not sure if they will have the money when the payment is due but even u go with debt now but u would still need to wait for the activation code

[RitsukoSonoda]

They do this with every expansion. There is a preorder code you can use now which gives the preorder bonuses then a code for the actual expansion that you can't redeem until closer to the expansion early access. I think last time it was within like the week before the early access started

[Sotaris]

The early access code will get unlucked when early access starts on nov 19.

The pre-order code you can redeem now for the pre-order goods.