Real purchases not available in TestFlight

Question

We had an app developed years before and now we are developing in Flutter and we want to test our old, real purchases, but on TestFlight, we don't see them, but we only see our old purchases done on the last TestFlight made years ago.

We can buy on TestFlight all the In-App Products normally without costs, but we want to test our real purchases from the old app.

We have the same Bundle ID, a newer version, and the products have the same IDs.

Answer 1

We have integrated this package https://pub.dev/packages/in_app_purchase