How to solve in-app purchase error on iOS?

Question

iOS

Hello,
I'm making an in-app purchase in the application, when testing on a test user with the Debug configuration, the purchase goes well. I switch to Release and try again to really buy - I get an error:
"Apple ID name not found, or wrong password entered. Try again." - although the password is exactly correct and the account, respectively, is not a test one.
Where is the joint? Maybe something was not signed or not delivered?
Thanks

Answer 1

The jamb is that it's not a test account. A real user can make a purchase only if the application is uploaded to the store.