Shadowbringers Steam Key is Invalid

[Malzian]

Hello, I recently bought the Steam implemented version of Shadowbringers yesterday (March 4th) and tried to input the allotted "Final Fantasy XIV: Pre-purchase Bonus Content" key into the Mogstation Registration Code tab that reads "Enter Pre-order Bonus Code (Early Access Code)" to no avail it says it's invalid. I bought all of ARR, Heavensward and Stormblood on Steam and now Shadowbringers in case that would help. If I can get help with this it'd be sincerely appreciated.

See below:

I bought my ShB preorder through the SE store so IDK if it's different for Steam, but there was a two step process.

1. I used the code I got from the SE store site here.
https://redeem.finalfantasyxiv.com/na/redeem

That then gave me a SECOND code that I used at the mogstation to attach it to my service account.

Assuming Steam is the same way you may need to follow that link to input the code you have, to get a second code for the mogstation. IDK why it's that way.