[Solved] Unity IAP 2.2.2 Duplicate PurchaseEventArg

Hey everyone.
I have a problem with new update sdk. 2.2.2 version fix some bug, but now after successful purchase, in methid PurchaseProcessingResult i recieve two PurchaseEventArg.
I validate this product by PlayFab, but how fix it?
Im use return valur PurchaseProcessingResult.Pending, and after Playfab Validation use ConfirmPendingPurchase.
Some one can say how fix this duplacate events?

 

Bumping up this one.

I observed the issue with double callbacks on Android (Google Play) with the lastest package 2.2.1 and the latest plugin 2.2.2.

 

I just attempted to upgrade again yesterday and also noticed the same error.

PurchaseProcessingResult ProcessPurchase(PurchaseEventArgs e) is definitely getting called twice for a single purchase:

Code (CSharp):

1. 2020/11/27 11:39:01.103 25417 25475 Info Unity [IAPManager->ProcessPurchase] Transaction ID=jgaeijbllolnkidogcmellid....
2.  
3. 2020/11/27 11:39:02.056 25417 25475 Info Unity [IAPManager->ProcessPurchase] Transaction ID=jgaeijbllolnkidogcmellid....
4.  

 

Ok what's happening is that if you return PurchaseProcessingResult.Pending on PurchaseProcessingResult ProcessPurchase(PurchaseEventArgs e) instead of waiting for the next app start as the documentation says it should : https://docs.unity3d.com/Manual/UnityIAPProcessingPurchases.html

ProcessPurchase is getting immediately called again, probably because when we make a purchase the game loses focus to open the store popup, and then when it gets focus it is recognized as an app start?

Is this behaviour intended now?

 

probably bug.

For unity devs:

iap 2.1.1 (products consumable)-

Duplicate call ProcessPurchase on Android:
when you click-tap to buy in the system_window and close app immediately. Restart app and after OnInitialized it will call ProcessPurchase twice with same transaction and same product.

No callbacks (ProcessPurchase, PurchaseFailed) on iOS:
You should knock out the Internet after a successful purchase (when system_window appear about Successfull), click "ok" in the system_window and exit the game. Restart the game, click on the same product, confirm the purchase and after some timeout, system_window appear "this product has already been purchased", then no further callbacks (ProcessPurchase or PurchaseFailed) from Unity will not called (90% cases).

 

It happened in 2.2.1 and is still happening in 2.2.2.

It doesn't appear to be a critical issue because the second purchase fails:


[2020/11/29 04:09:06.43082] (Log): Purchasing product asychronously: '<product_9>' <=Real purchase
[2020/11/29 04:09:06.47693] (Log): purchase({0}): <product_9> <=Real purchase success
[2020/11/29 04:09:31.89720] (Log): ProcessPurchase: PASS. Product: '<product_9>' <=Duplicate purchase
[2020/11/29 04:09:32.04547] (Log): Already recorded transaction cdinbpefpelhpggoaejahppn.AO-J1OyJ_... <=Real purchase TransactionID
[2020/11/29 04:09:33.32549] (Log): Already recorded transaction iedgfcfamflgbhcljcclhcnh.AO-J1Oz... <=Duplicate purchase TransactionID
[2020/11/29 04:09:33.41354] (Log): onPurchaseFailedEvent({0}): <product_9> <=Duplicate purchase
[2020/11/29 04:09:33.41892] (Log): OnPurchaseFailed: FAIL. Product: '<product_9>', PurchaseFailureReason: Unknown <=Duplicate purchase

 

Yes I return pending on the first call, if I return Complete the duplicate call does not happen.

As I said the issue seems to be:
1-Purchase is made, API calls ProcessPurchase, we return Pending.
2-We close the purchase popup from the store
3-The game detects it as returning to the app and fires ProcessPurchase again (even if you don't quit the app).

 

I cant publish to ppl my app coz of this, wtF?
Test in on android. Users money are withdrawn and even unity dashboard shows that purchase was sucessful, but no success callback from UNITY.
On 2.2.1 there was no callback at all.
On 2.2.2 there is message like "already recorded transaction". And I test it on LIVE CLIENT, got messages from unity logcat. And moreover if user cancels buy action there is AGAIN no failure callback from unity.

SERIOUSLY GUYS InApps = money and it is what we are doing all of this gaming stuff for. It's END 2020 btw, we are talking about mars but still cant get working inapps LOL

 

Hi, @JeffDUnity3D!

Yes, I return

PurchaseProcessingResult.Pending

from

ProcessPurchase

:

Code (charp):

1. public PurchaseProcessingResult ProcessPurchase(PurchaseEventArgs e) {
2.    VerifyPurchase(e);
3.    return PurchaseProcessingResult.Pending;
4. }

VerifyPurchase

performs async purchase verification via our server. After verification I call

IStoreController.ConfirmPendingPurchase(e.purchasedProduct)

.

Package: 2.2.1
Plugin: 2.2.3

 

This affects only Google Play integration. (I didn't try other Android stores.)
App Store integration works correctly.

 

We have had to roll back to v2.0.0 because of this issue.

We are receiving duplicate "ProcessPurchase" calls during a purchase, and an "OnPurchaseFailed" event with a PurchaseFailureReason.Unknown reason. This means that when we make a purchase the user is show both the purchase success and purchase failure notifications in our game.

On a side note, we also are getting an Unknown reason when legitimately failing a purchase.

 

This issue is fixed in the latest plugin 2.2.4.