Question by Sebseb_ · Sep 25, 2020 at 12:13 PM · mobile iap purchase internet

ProcessPurchase partially fails with mobile data connection

Hi everyone, I got a little problem with Unity IAP on my Android game. When I purchase my consumable products when connected to internet with mobile datas, it looks like the ProcessPurchase Method fails. Let my explain more with my code.

 public PurchaseProcessingResult ProcessPurchase(PurchaseEventArgs args)
     {
         if (string.Equals(args.purchasedProduct.definition.id, fiftyBrocoinsID, StringComparison.Ordinal))
         {
             Debug.Log(string.Format("ProcessPurchase: PASS. Product: '{0}'", args.purchasedProduct.definition.id));
             PlayerData.nbBrocoins += 50;
             PlayerData.SaveBrocoinsAndAccess(); // the player datas are save successfully in any case
             StartCoroutine(MakeNSoundsOfBrocoins(5)); // but sounds are not always played when connected to internet with mobile datas
         }
         else if (string.Equals(args.purchasedProduct.definition.id, fullAccessID, StringComparison.Ordinal))
         {
             Debug.Log(string.Format("ProcessPurchase: PASS. Product: '{0}'", args.purchasedProduct.definition.id));
             PlayerData.hasFullAccess = true;
             mainMenu.UpdateToFullAccessDisplay();
             PlayerData.SaveBrocoinsAndAccess();
             StartCoroutine(MakeNSoundsOfBrocoins(10));
             GetComponent<BroCoinMenu>().CheckIfFullAccessAndAdjustButtons();
         }
         else
             Debug.Log(string.Format("ProcessPurchase: FAIL. Unrecognized product: '{0}'", args.purchasedProduct.definition.id));
 
         return PurchaseProcessingResult.Complete;
     }
 
     private IEnumerator MakeNSoundsOfBrocoins(int n)
     {
         for (int i = 0; i < n; i++)
         {
             AudioManagerForOneGame.am.PlaySound("OneBrocoin");
             yield return new WaitForSecondsRealtime(0.2f);
         }
     }

So what happen is that when I buy 50 brocoins while connected to internet with mobile datas, the payment goes well, but sometime ( it happens about once in two), StartCoroutine(MakeNSoundsOfBrocoins(5)); doesnt make any sounds (yet PlayerData.nbBrocoins += 50; and PlayerData.SaveBrocoinsAndAccess(); are called with no problem) and, when I close and then restart the game, I get 50 brocoins more (without paying more) and I hear the sounds from StartCoroutine(MakeNSoundsOfBrocoins(5));!

So, my guess is that the ProcessPurchase method fails at StartCoroutine(MakeNSoundsOfBrocoins(5)); and the purchase is marked as Pending, and when I restart the game, it is done again and marked as completed this time. (I'm not sure though, this is what I think is happening but I might be completly wrong!)

What I don't understand is that it only happens when connected to internet with mobile datas, It work as intended with wifi or in the editor. What sould I do to fix this and be sure the player won't get the purchase twice ?

Thank you for your time !

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