Linking Predecessor account to Predecessor Webstore

Before making any purchases, you'll need to link your game account to your Stash Account. 

Click the "Sign In" button in the upper-left corner of the Predecessor Webstore. 

You will then be prompted to log in to a platform account (Steam, Epic Games Store, PlayStation, or Xbox). If you're playing from the linked account, select the platform where your main account is located. 

You will then be taken to your account management portal. From there, click the Link Stash button (the big orange one, can't miss it!).

And that's it! You should now be able to make purchases in the Predecessor Webstore.