How to transfer gift cards between stores

I know this is an older ask of gift cards, but it’s still not allowed to migrate. I have sold one of my locations and created NEW Shopify store for new owner with all the data. Got everything working really well but can’t upload Gift Cards. It’s a big deal! I thought I could manually enter each one like I did from a former migration, but The ID that’s downloaded for shopify created Gift cards with last 4 characters does not equal the scan code produced. What in the WORLD?! The scan code is not in the file. And importing into another Gift/Loyalty App that produces another CODE that has to be sent to customer will not work either. Many customers buy in own name and just give out, or no customer assigned at all. This just seems like it would be such an easy export/import kinda thing, why isn’t the scan code included??? Am I missing something???