Hi, you can’t specifically block an App Store/Play Store from making a purchase, but you can try saving the original transaction ID so you can block that too. These users could still make a new Apple/Google account, but it would put another obstacle in their way.
but you can try saving the original transaction ID so you can block that too
So, that would be something we can detect AFTER they make a purchase, not BEFORE, correct?
Yes, the user would need to first make a purchase so you can get this transaction id