Unity IAP Services not Working in my release App since iOS 13.4. The purchase dialog does not show.

Hello, I have an App developed with Unity 2018.4.5f and Unity IAP 1.23.1 containing a non-consumable products. The app is in release version and available on the appStore for almost 1 year. The IAP has always been functional except since IOS 13.4 update. On IOS 13.4 + devices, the native purchase popup no longer opens. Another clarification, the price of the non-consumable product was reduced to $ 0 the time of the covid. Can the purchase price influence the functioning of the Unity IAP purchase?

The implementation method of the IStoreListener is inspired by your tutorial (https://learn.unity.com/tutorial/unity-iap).

In the Unity Dashboard I can see crash log for IOS 13.4 devices.

Native Crash - Unknown Function (/usr/lib/system/libsystem_kernel.dylib)

Native StackTrace:
Thread 39
0 libsystem_kernel.dylib 0x00000001ad255198 <system symbols missing>
1 libEmbeddedSystemAUs.dylib 0x00000001cbb28330 <system symbols missing>
2 libAudioToolboxUtility.dylib 0x00000001b87ec614 <system symbols missing>
3 libsystem_pthread.dylib 0x00000001ad197d98 <system symbols missing>
4 libsystem_pthread.dylib 0x00000001ad19b74c <system symbols missing>

Part of logs:

Code (CSharp):

1. {"message":"IAPController IsInitialized: 'True'","ts":1591908958560,"frame":803,"type":3},{"message":"Purchasing product asychronously: 'Premium'","ts":1591908958561,"frame":803,"type":3},{"message":"m_StoreController.InitiatePurchase: 'Premium'","ts":1591908958562,"frame":803,"type":3},{"message":"purchase({0}): Premium","ts":1591908958570,"frame":803,"type":3}],"ts":1591969612570,"user_agent":"NameOfApp/3865.576%0A CFNetwork/1126 Darwin/19.5.0","project_name":"NameOfApp","crash_report_hash":"6b1ff059bf15ed3b3bd545faa0a7a1fa","managed_exception":null,"native_crash":{"signal_name":"SIGABRT","signal_code":"#0","signal_address":7200009608,"signal_pc":0,"symbolicated":true,"threads":[{"number":0,"name":"","crashed":true,"frames":[{"image_uuid":"b422ba38a9f63062be28d28d39e3fe25","image_name":"/usr/lib/system/libsystem_kernel.dylib"

Have you ever had this problem and how to fix it?

Thanks!

 

Thank you @JeffDUnity3D for being quick. Yes, I can reproduce the problem on IOS 13.4 and higher each time. The purchase button does not open the purchase window. The price has been reduced recently, several purchases were made before the price drop. It's not me who deals with prices on the App Store, I do not know the process for request refunds. I will ask that we change the price to test again. I come back to you with the result.

 

The IAP purchase still works very well on ios 13.3 and less devices.
I contacted Apple technical support to find out more about the impact of a price change.

 

Hi @JeffDUnity3D , I have some logs from xCode, I hope it will help you to help me!

After several attempts, the problem is still not resolved, when trying to make a purchase, the native purchase box is not displayed. The app is not able to connect to the store! On the other hand, when we use the restoration of purchases function, the native popup to connect to the App Store is displayed, once the account information has been entered, the restoration works correctly.

Here the xCode Crash report

Code (CSharp):

1. {
2.   "LocallySymbolicatedSourceFile" : "",
3.   "UserData" : {
4.     "Resolved" : false,
5.     [COLOR=#ff0000]"Name" : "StoreKit: -[SKPaymentQueue finishTransaction:] + 608",[/COLOR]
6.     "Description" : ""
7.   },
8.   "LocallySymbolicatedDefaultName" : "",
9.   "DefaultName" : "StoreKit: -[SKPaymentQueue finishTransaction:] + 608",
10.   "LocallySymbolicatedSourceLine" : 0,
11.   "Identifier" : {
12.     "AdamId" : "*********",
13.     "BundleId" : "com.***********",
14.     "Version" : "1.08",
15.     "IsBeta" : true,
16.     "Build" : "3862.573",
17.     "PlatformSDKIdentifier" : "com.apple.platform.iphoneos",
18.     "RootBuild" : "3862.573",
19.     "RootVersion" : "1.08",
20.     "CrashPointId" : "BeDWOATqpBi2vdcZf68OSZ"
21.   },
22. "SourceLine" : 288,
23. "SourceFile" : "SKPaymentQueue.m"
24. }
25.  

xCode console log report when clicking on the purchase button

Code (CSharp):

1. Task <E8791D5F-08D2-48DC-9C51-25586636B3D7>.<1> now using Connection 17
2.  
3. Connection 17: received viability advisory(Y)
4.  
5. Task <E8791D5F-08D2-48DC-9C51-25586636B3D7>.<1> sent request, body S 556
6.  
7. boringssl_context_message_handler(2258) [C17.1:2][0x108a66de0] Reading SSL3_RT_HANDSHAKE 149 bytes
8.  
9. boringssl_context_new_session_handler(1117) [C17.1:2][0x108a66de0] New session available
10.  
11. UnityIAP: UpdatedTransactions
12.  
13. UnityIAP: PurchaseFailed: 0
14.  
15. com.apple.appstored StoreKit default 11:02:56.796436-0400 appstored appstored com.****..****.: Loading 1 products for com..****...****.
16.  
17. UnityIAP: UnityPurchasing OnPurchaseFailed: Unknown - SKErrorUnknown - APPLE_Connexion à l’iTunes Store impossible
18.  

And in attached file a crash log on a newer version of the app. Do you have enough information? Thank you so much.

 

Yes, I can open the Apple App Store on this device.
I don't seem to have the start of the logs. But I have confirmation that Unity IAP initializes correctly on a screenshot.

Is it possible that my Unity IAP updated to version 1.23.1 but not the UnityPurchasing.m file? I read this post https://forum.unity.com/threads/how-to-support-purchasefailurereason-unknown.520587/
and I have only 3 error code in this method :

Code (CSharp):

1. - (NSString*)purchaseErrorCodeToReason:(NSInteger) errorCode {
2.     switch (errorCode) {
3.         case SKErrorPaymentCancelled:
4.             return @"UserCancelled";
5.         case SKErrorPaymentInvalid:
6.             return @"PaymentDeclined";
7.         case SKErrorPaymentNotAllowed:
8.             return @"PurchasingUnavailable";
9.     }
10.  
11.     return @"Unknown";
12. }

Have new error cases been added in the latest updated version?

 

Ok, thanks for your test. I will revert to IAP 1.19 and check if it works. I come back to you with the result.

 

Before changing the version of Unity IAP, I saw this log between Purchase and OnPurchaseFailed.

Code (CSharp):

1. Internal : JobTempAlloc has allocations that are more than 4 frames old - this is not allowed and likely a leak
2. To Debug, enable the define: TLA_DEBUG_STACK_LEAK in ThreadsafeLinearAllocator.cpp. This will output the callstacks of the leaked allocations.

Do you know this problem?

 

Unfortunately, I have exactly the same problem with IAP version 1.19. The $ 0 IAP promotion on the Apple Store ends in a few days. We will see later if the problem still persists. Thank you for your support.

 

Hello, my app still has the same problem with the IAP Purchase. The IAP purshase has always been functional except since IOS 13.4 update. On IOS 13.4 + devices, the native purchase popup no longer opens.

The promotion of the app is finished on the appStore, the IAP is no longer free.

My App is developed with Unity 2018.4.5f and Unity IAP is up to date (version 1.23.3) and build with xCode 11.4.1.

No matter what method I use to make the purchase, I always get the same error.

UnityIAP: UnityPurchasing OnPurchaseFailed: Unknown - SKErrorUnknown

Purchase finished with error: Error Domain=SSErrorDomain Code=16 "Cannot connect to iTunes Store" UserInfo={NSLocalizedDescription=Cannot connect to iTunes Store}

Here are the methods tested:

• The implementation method of the IStoreListener is inspired by your tutorial (https://learn.unity.com/tutorial/unity-iap). - In-APP FAIL on IOS 13.4+ but not 13.3-
  
  
• With Easy Mobile Pro plugin (version 2.3.2) (https://www.easymobile.sglibgames.com/) - In-APP FAIL on IOS 13.4+ but not 13.3-
  
  
• With your Sample IAP Project (IAP_Project.zip) (https://forum.unity.com/threads/sample-iap-project.529555/) - In-APP FAIL on IOS 13.4+ but not 13.3-
  
  
• And last with Codeless IAP - In-APP FAIL on IOS 13.4+ but not 13.3-
  

From all these tests, the error does not seem to come from the IAP implementation code!

Have other developers noticed this problem? Currently, users of IOS 13.4 and later cannot purchase the IAP. This is a major problem because it is an income that my client loses!

Your help is greatly appreciated!

 

Yes, that this really sounds like an Apple issue! But I don't know what to do. Apple recommends that I look in their developer forum. But I find no solution. Thank you for your support!

 

The purchase problem occurs as much on the production version (which has been in release for almost a year) and on the new testFlight versions (containing attempts to resolve the problem).

 

Hi @JeffDUnity3D, I can't find the WinterRunner app on the AppStore, can you send me a link?

 

There may be a sound when you press the purchase button. We use wWise 2018.1.8 for audio management. Perhaps it is also a conflict with the facebook sdk (v7.18)?
The build was make with xCode 11.4. that may be the problem. I'm trying to make a new build with the version of xCode 12 Beta 2. To see if it changes a few things.

 

Unfortunately, the bug is still present in the new build made with xCode 12 Beta 2.
I sent a TSI (Technical Support Incident) to Apple.

 

Oh, I'm sorry, my answer is not very clear. May be because: In the release version, there is a little sound on click of the purchase button. But not in my attempts on testFlight.

In one of the attempts on testFlight, I integrated in my project your scene and your code from Sample IAP Project, and the behavior is the same!

 

Hi @JeffDUnity3D, finally, I don't think there is a link with the Native StackTrace: provided in my first post. Anyway, this crash is no longer there. My real problem is the purchase which does not work on iOS 13.4.

Here is the response from an Apple engineer:

0 1 0x34e2 348 default 16:40:38.286559-0400 myapp myapp UnityIAP: Add transaction observer

Here the unity framework is indicating that the transactionObserver is being installed - when this happens, I should see a call to the App Store Server requesting a check for queued transactions, but there is no such call to the App Store Server. This looks like a bug report issue with the Unity framework or possibly your use of the Unity Framework call which was supposed to make this call. However from an overall use of this function, I can see that this call is being made from a ViewController and not from the didFinishLaunchingWithOptions delegate method as recommended above. I think you need to discuss this with Unity to ask how you can use the framework so that the addTransactionObserver call is made just once - from the didFinishLaunchingWithOptions app delegate method.

0 1 0x34e2 348 default 16:40:38.286612-0400 myapp myapp UnityIAP: Add transaction observer

0 1 0x34e2 348 default 16:40:38.286668-0400 myapp myapp UnityIAP UnityEarlyTransactionObserver: Request to initiate queued payments

There is never any evidence from the log file that the addPayment call was ever issued by the app. As you are using the Unity Framework, I think this is now an issue for you to discuss with Unity.

Currently, UnityIAP is initialized in the awake of my first scene. This is probably the problem. Apple recommends that the addTransactionOberver made just once - from the didFinishLaunchingWithOptions app delegate method.
How can I do that?

 

I don't know if it has a link but in the first logs when we open the app, there are twice calls to UnityEarlyTransactionObserver

0 1 0x34e2 348 default 16:40:34.247876-0400 MyApp MyApp UnityIAP UnityEarlyTransactionObserver: Created
0 1 0x34e2 348 default 16:40:34.247939-0400 MyApp MyApp UnityIAP UnityEarlyTransactionObserver: Created
0 1 0x34e2 348 default 16:40:34.248100-0400 MyApp MyApp UnityIAP UnityEarlyTransactionObserver: Registered for lifecycle events
0 1 0x34e2 348 default 16:40:34.248172-0400 mazaam mazaam UnityIAP UnityEarlyTransactionObserver: Registered for lifecycle events

It also tells me that adding the transactionObserver is good when opening the app (but that's not what Apple engineer seems to say).

Ok, after some research, this is just a case of Xcode printing out extra stuff to the console. Enable the OS_ACTIVITY_MODE = disable environment variable this double-logging should go away.

 

Hi, I am facing the same issue too, I am using the same script and do all importing steps same as old projects, but not working anymore, I am working on xcode 12.0.1 and unity 2020.1.4f1, test on simulator and real devices, version 14.0,
test flight and published on market have same issues,on real device nothing happen when click on IAP button, on simulator the game stuck on splash screen and here the logs from xcode (simulator):

UnityIAP: SKProductRequest::didFailWithError: 0, Error Domain=SKErrorDomain Code=0 "UNKNOWN_ERROR" UserInfo={NSLocalizedDescription=UNKNOWN_ERROR, NSUnderlyingError=0x60000280e0d0 {Error Domain=ASDErrorDomain Code=507 "Error decoding object" UserInfo={NSLocalizedDescription=Error decoding object, NSLocalizedFailureReason=Attempted to decode store response}}}. Unity Purchasing will retry in 60 seconds

any help appreciated

Edit:
I am using IAP purchase 2.1.1

 

Hi mohammedghbyen, I'm not sure what exactly is causing this problem. But I solved the problem under IOS by archiving the project with another Xcode installation (another computer) and with a new certificate.

good luck

 

I am testing from Egypt on a real device, its not working, also submit for review on app store I've got this message from review team:
We discovered one or more bugs in your app when reviewed on iPad running iOS 14.0.1 on Wi-Fi.
Specifically, tapping on any IAP product produced no further action.

 

I will try with xcode 11.7 and new certificate, hope it works, Thank you

 

I am using virtual mac from mac stadium, internet speed very high and downloaded within minutes

 

I've read about sandbox that its created for test flight users automatically, so test flight user can test iap purchase without create sandbox account, is there anything to do with sandbox?!

 

I have both xcodes 12 and 11, I've tried before with 12 but didn't work so now I am trying with xcode 11 and new certificate as mares_unity mentioned

 

Sorry I cant test with a real device on a US, but review team of apple said that its not working on iOS 14.0.1:
"We discovered one or more bugs in your app when reviewed on iPad running iOS 14.0.1 on Wi-Fi.
Specifically, tapping on any IAP product produced no further action".
I will contact apple team for more details about the issue

 

That's the problem with virtual mac, you can get logs for real device, all is virtuals and simulators
, its also didn't work with the xcode 11 and new certificate, I've tried different location (Saudi Arabia), when clicking on IAP button, the purchase window of apple doesn't show, I will test the unity Sample IAP Project with TestFlight

 

Could you please share the version of xcode, unity, IAP purchase register and iOS versions?

 

Hi, I've create new app on app store and added the projducts from the sample IAP purchase product:
https://forum.unity.com/threads/sample-iap-project.529555/
I've updated IAP purchase package, on latest version of xcode, added the products on app store and edit it in the products id to be the same as in the app store, still not working
the project is from the link, only updated the IAP and unity to version 2020, exported and uploaded on test flight:
test on simulator, result: is stuck on splash screen
test on real device, result: no action happen, the blue screen shot shows the details
What am I doing wrong?

 

Thanks a lot JeffDUnity3D for mentioning that, I think its the problem, I've looked up for that in their rules and found that client account is for free apps only, not paid apps or including in-app purchases agreement as shown in the attached photo.