UNITY IAP (Android) - Item already own wrong message

Hi,

I am using Unity IAP for purchasing non consumable IAPs on my android device. When I purchase a non consumable IAP on one device it works fine but when I try to purchase the same product on any other device using the same google account it display the message as "Error, you already own this item" but the failure reason received is "UserCancelled".

On investigating the code and logs I came to know that Google Play IAB is returning the correct error as "Purchase canceled - Response: 7:Item Already Owned" but it is sending the wrong message as "User canceled. (response: -1005:User cancelled)" to unity. This same message is transferred in case if user intentionally cancels the IAP. How to distinguish between two cases?

I am attaching the screenshot of both the cases

Unity Cancelled log screenshot


Unity Item already owned screenshot


Thanks

 

@aastha_appster Thank you for reporting this, I will investigate and will check with the IAP team.

 

I am using Unity version 2017.3.1f1 and latest updated IAP 1.17.0 version. I am also getting the purchase failed event but the reason is user cancelled. I am getting this error every time if I purchase the IAP on different device using the same google account.

 

Hi guys,
I am having exactly the same issue with Unity 2017.4.2f2 and IAP v. 1.16.0

 

We have improved error handling with IAP 1.19, please test with that version if possible

 

Hi Jeff,
I updated the plugin to 1.19 but sadly I have same error as PurchaseFailureReason (UserCancelled) and from
ITransactionHistoryExtensions.GetLastStoreSpecificPurchaseErrorCode (IABHELPER_USER_CANCELLED).

This is the log:

Code (CSharp):

1. 06-01 17:20:43.810 8756-8834/com.xxxxxxxxxxx I/UnityIAP: Launching buy intent for com.xxxxxxxxxxx.xxxxxxxxxxx. Request code: 999
2. 06-01 17:21:15.650 8756-8756/com.xxxxxxxxxxx I/UnityIAP: onActivityResult
3. 06-01 17:21:15.651 8756-8756/com.xxxxxxxxxxx I/UnityIAP: Purchase canceled - Response: 7:Item Already Owned onIabPurchaseFinished: false User canceled. (response: -1005:User cancelled) Purchase response code:-1005

Google still showing a popup that say "You are already subscribed to XXXXX".

Any idea?

 

As unityjingyao requested, if you could please send us a project that we can use to reproduce. Alternatively you can test with the sample project. Also, regardless of either error (and not to minimize your concern) the user should not be able to purchase again, correct? The "already subscribed" message would be expected since you have already purchased a non-consumable, regardless of device. Can you elaborate how this is affecting your purchase flow? I suspect I am missing something, thanks for your patience. https://forum.unity.com/threads/sample-iap-project.529555/

 

Hi Jeff,
you are perfectly right, it shouldn't affect our flow. Sadly we live in a flawed world where we don't design the features
In our case, under iOS, AppleStore doesn't have such behaviour and when you have a duplicated transaction, we get a successful purchase and the Store just pop a message telling the user that he/she already paid.
GooglePlay has a different behaviour that tell us we fail the payment for duplicated transaction.
Sadly, our flow was based on iOS so if we could just capture the right error, we could change the failure in success and keep a consistent flow within the App.

I'll try to make a repro-project, thanks for the reply.

 

On iOS, you should not get a successful purchase (it has already been purchased), and the message that you mentioned telling the user that they have already paid implies the same (a duplicate transaction). I wasn't quite clear on your response, are you saying on iOS, it allows the user to purchase a non-consumable on different devices with the same account? That would be behavior that would need to be addressed if so.

 

I'm saying that on iOS (sandbox environment) i can do multiple purchase of a "subscription" (careful here, in Unity's catalogue seems to be a separated option from consumable and not-consumable) with same AppleID, same device.
It is definitively a duplicated purchase from a logic POV but Unity's IAP pass it as good.
On Android, i get the failure but the reason is wrong because I get "UserCancelled" which is not true.

[UPDATE]
I created a new solution, latest IAP plugin, using "IAP Demo" scene; still get same behaviour on Android (duplicated transaction returns IABHELPER_USER_CANCELLED).

Cheers

 

@ap-unity Thank you guys for fixing it!

 

@ap-unity Did the fix get in a new versions? I'm seeing this issue as well.

 

Not yet, it will be in the next release within a few weeks.

 

Hey @JeffDUnity3D: what will the fix be? As in: what will the error message / code be once this is fixed?

 

(And can you say anything about a potential release date? My iAP release is coming up and I do not look forward to the hundreds of support messages from people with multiple devices

 

A few weeks is the best we can say right now. My hope is 2 weeks, but that may change. It's a large integrated release, and it's currently going through QA. The timing depends on any potential issues that might be found during the QA process.

 

The latest version of IAP is now available 1.20.1

 

This doesn't seem to be fixed in 1.20.1.

Repro steps:
Trigger a purchase on Google Play
Tap "1 tap buy"
Disconnect net quickly (easiest is to disable Wifi through control center)
Go back to game (swipe out control center)
Google Play will say you don't have internet for the purchase
Our game invokes a purchase failed dialog
Turn net on again
Trigger the same purchase on Google Play
Tap "1 tap buy"
Google Play says "Error: You already own this item"
This happens at least for consumables, we haven't tested for other purchase types.

 

Should we interpret that as a fix was supposed to be in 1.20.1, or was it just a generic heads up that a new version is available? Thanks.

 

@Tommi-Kiviniemi That was the hope, we will take a look.

 

I'm experiencing the same issue.

 

We are investigating.

 

we are seeing the same thing,
seems the purchase request sent to google was sucessful,
but with some connection disturb, client(iap) does not know that,
if i tried to re-install the app and refresh google play store, re-launch the app will trigger ProcessPurchase,
however, when return "PurchaseProcessingResult.Complete", there is an exception: "Unity: java.io.EOFException"

 

@Num0n1 We have been able to reproduce here, and now working to address the issue. The hope is the update will be in the next release which may be later this year or early into 2019.

 

Hello,
we are experiencing the same thing with consumeables in version 1.20.1.
when there is a connection issue while connecting to google play server we cannot purchase the same item again.
the error: "Already Owned" appears but this product item does not has a receipt or transactionId.

please keep us updated about the progress of a fix. thanks...

 

Thanks for your attention on this issue, recently we have encountered something similar.
We are using v1.20.1.
We have users' log showing PurchaseFail reason "DuplicateTransaction", from what we have learned, it seems ProcessPurchase is not called after a successful purchase, and if the user trys to buy the same product, it will go straight to onPurchaseFail with reason "DuplicateTransaction", it will not show the google payment popup at all.
By fixing this, the user needs to refresh google play store, maybe even switch wifi or 4G, re-launch our app, than ProcessPurchase will be called.
Not sure if this is the same problem, but seems IAP does know the purchase is completed for this scenario.
We thought it's just because of bad internet connection, but we are getting this once every 2 or 3 days which is a bit strange.

 

Hello,
This bug is still occurring in many games released in Japan.
I expect that this bug will be solved with the new version and I am longing for the release.

I am very happy if you can raise the priority.

 

Unfortunately we have no control over the release schedule, we have to coordinate with several other product teams

 

Updated to latest IAP version but issue still persist. Please release the fixed version!!!

 

Hi All,
this is diego_mp a year later, U2018.4.0f1, IAP 2.0.6 and the bug is still there. Getting userCancelled from a duplicated transaction under iOS.
@JeffDUnity3D @ap-unity please advice.

Cheers!

 

To ensure it is the same issue and/or a regression, can you provide steps to reproduce?

 

I am sorry for the late reply.

- To reproduce the issue please buy a renewable subscription with a trial period in iOS, sanbox environment (not sure this is useful but let try my same settings).
- Kill the app once you receive successfully the receipt.
- restart the app and proceed to buy the same IAP item.
- Observe userCancelled as the reason for the failed purchase.

Cheers!

 

How are you killing the app?

 

I got the same problem in IAP 1.22.0
1.buy a subscribe,and it first end with success
2.buy the same subscribe again, and it return error "DumplicateTransaction"
and I found these:
12-05 12:54:42.464 22583-22866/? I/UnityIAP: onIabPurchaseFinished: false
12-05 12:54:42.464 22583-22866/? I/UnityIAP: Unable to buy item (response: 7:Item Already Owned)
12-05 12:54:42.464 22583-22866/? I/UnityIAP: Purchase response code:7

 

What I typically do to test non-consumables is to either 1) configure several similar subscription products 2) configure multiple tester accounts

 

Is this fixed? Ive switched to Unity IAP from Unibill(Deprecated) And I thought it was working, but I could only do one successful purchase of a consumable now the button doesn't do anything. LogCat shows already purchased error, duplicate transaction. Really?? How? This is a consumable which is meant for repeat purchase. How to fix this please? need fix asap.

 

I solved this by adding this code to the CodelessIAPStoreListener

foreach (var product in m_StoreController.products.all)
{
m_StoreController.ConfirmPendingPurchase(product);
}

Source for the fix:
http://codesaying.com/unity-iap-stuck/

 

This should not be needed if you have Consume checked for your IAP Button. You would want to understand why the products are left in Pending in the first place. All products would be in your controller, including those that the user has not purchased yet. You are trying to consume products that haven't been purchased yet. We plan to add additional error handling to ConfirmPendingPurchase, and it would fail in your scenario. You should not be coding Codeless, as the name implies. It is not supported. If you need to code anything, this is a clear signal to use scripted IAP instead. It will save you much time.

 

Getting back to the original post. This is a known Google issue, restore does not occur across devices unless you clear the Google Play cache first. We are working with Google to resolve the issue and hopefully get their updated billing library into the next release soon.

 

Thank you for considering update billing library. Has the latest Unity IAP resolved this issue?

 

Apparently it has helped, but has not completely resolved the issue. Are you still seeing the behavior?

 

I will update Unity IAP version and check it. I'll report back if the same error occurs. Thank you.

 

A full fix is expected in an upcoming release, to properly set expectations

 

Hey I have same problem "Error, you already own this item". I have 2019.2.8f unity, android, added External dependecy and FB sdk (newest both). It is showing this problem can this plugins be problem? I have tried several ways (delete cache and data of play store, changed

Code (CSharp):

1. public void OnInitialized(IStoreController ext_controller, IExtensionProvider exT_extensions)
2.         {
3.             initializationComplete = true;
4.             this.controller = ext_controller;
5.             this.extensions = exT_extensions;
6.             foreach (var product in controller.products.all)
7.             {
8.                 controller.ConfirmPendingPurchase(product);
9.             }
10.             foreach (var button in activeButtons)
11.             {
12.                 button.UpdateText();
13.             }
14.         }

like this. Added restore button (even though I read in documentation google does it automatically and I don't need to add restore button). I don't know what to do? Do you know any solution I use latest 2.2.1 iap. (had 2.0.6 verified version but same problem)

 

@NMJ_GD Please test with IAP 2.2.2 which is now available. If you continue to have issues, please provide specific steps to reproduce.

 

@JeffDUnity3D As I remember I still had problem with IAP 2.2.2, but can't say for sure. My solution was reverting to IAP 1.19. I downloaded it from here:
https://forum.unity.com/threads/unity-iap-previous-versions.527432/