03-10-2022 05:43 PM
My guess (we have not released the app yet, so cannot verify this) :
Publishers can view sales reports.
https://developers.facebook.com/docs/games_payments/reports/
payment_id exists in the payment_detail SD row section of this report.
And, when an app is purchased from the store, the user receives a receipt email. At the top of this email is a receipt number.
I am assuming that payment_id in the sales report and receipt number in the email would match, is that correct?