I have an app which makes in-app purchases with no problem. I assumed that Google Play Promo Codes (not the subscription kind), once created on the Google Play console, were just another method of payment that pops up when purchases are initiated and payment choices are offered by Google billing. So far though, entering a promo code has always resulted in "Could not redeem code at this time. Please try again later." Google's instructions on integrating promo codes with apps say that redemptions are treated as outside purchases needing special processing, but they are pretty unclear as to what that means.
Can anyone tell me definitively that no further coding is necessary beyond just implementing Google Play Billing the way you do for regular in-app products? Or is there something I'm missing?
Can anyone tell me definitively that no further coding is necessary beyond just implementing Google Play Billing the way you do for regular in-app products? Or is there something I'm missing?