Unity can't make purchase on android platform, PurchaseFailureReason:Unknown and {M: GPUL.HEC}

Hello Unity,
We experienced trouble when purchasing item on Android. Our app already published, it went well on testing phase (using license, etc) but it failed when using real money, it always returned "Transaction was declined." and the UnityIAP returned "PurchaseFailureReason: Unknown", and we also saw this "GOOGLEPLAY_6:Error". We used UnityIAP version 1.23.1 and Unity 2019.4.17f1 in this case, I attached the log file (logiap.txt).

Then we build the app again and upload it as alpha test. We thought maybe it was because the UnityIAP out of date, so we tried using the latest stable version 2.1.1 but it still returned "Transaction was declined." and "PurchaseFailureReason: Unknown", but this time there was no message (sorry I didn't do log for this version, but if you need it, I will returned to this version and log it).

Then our last effort was to update it again to the latest version 3.0.1 (of course we followed the instructions to migrate), but it still again returned "Transaction was declined." and "PurchaseFailureReason: Unknown", but this time the message was "{M: GPUL.HEC}", I attached the log file for this version (logiap301.txt).

We need help ASAP, because we noticed this problem after the app published.

Thank you..

 

Hi Jeff, thank you for your fast reply
Actually we weren't initalizing IAP on every purchase, we just Debug Log it to make sure it was initialized (I assumed you saw the logiap301), and that log was snipped from when the app start as you can see the "homepageloaded" and then go straight to buy product using IAP.

Yes, I've tried with different device and with different google account. Actually the error 6 occurs on our published app, and all the IAP was declined as we see in the playstore console, and after that we inspect it and found the error 6.

Okay Jeff I will compare it, thank you

 

We did.. We tested it before, and I forgot to tell you that we also published on iOS as well. It went well there and android was either. But somehow at mid february, the IAP on android were all getting declined. So here we are..

[EDITED]
Sorry, I mean mid february

 

Sorry for the late reply Jeff,
Yes me too, but I saw it on this thread, on the log he provides (line 106 and 158), but as I read it, I didn't find anything that could help except update the UnityIAP..

 

Hi @JeffDUnity3D,
Thank you for your support and time. It turned out that our Google's merchant account have issues that need to be resolved by filling a merchant profiles form. In some country they need to verify our profile again, so after contact google and filling the form, google said that in maximum 3 days it should be resolved.

If anyone have these error too, you probably should recheck your merchant account.
Thank you

 

@ufadhlullah
Can you point where anyone should look into the play console to check for that merchant account issue ?

Thanks !

 

Do you mean on the google play console? If it is, on my case it was on the front page (app list) after you logged in as developer. You can see it clearly if you had an issue, marked as warning with yellow sign or red if it really need your action to solved it. And in my case it was red but we didn't thought it will cause the iap to fail entirely on every countries as they said we need fill form for a country requirement. Well, we learn everyday . Have a nice day

 

Hi everyone, i have the same error on purchasing :
"unable to purchase requested item" .
When i see my log , i have this :
onPurchaseFailedEvent(productId:coin_50 message: {M: GPUL.HEC})
Then :
onPurchaseFailed : FAIL.Product 'coin_50', PurchaseFailureReason: Unknown.
May you help me please ?

I have Unity AP version : 3.0.1 on Unity 2019.4.25f1
Thank a lot

 

Hi, I have the same problem on purchasing :
onPurchaseFailedEvent(productId:myskuid message:Invalid SKU details. {M: GPUL.HEC} - Response Code = 5)
UnityEngine.Purchasing.PurchasingManager:OnPurchaseFailed(PurchaseFailureDescription)
System.Action:Invoke()
UnityEngine.Purchasing.Extension.UnityUtil:Update()
(Filename: ./Runtime/Export/Debug/Debug.bindings.h Line: 35)
OnPurchaseFailed: FAIL. Product: 'myskuid', PurchaseFailureReason: Unknown

Unity 2019.4.9f1
IAP 3.2.1

 

Let me describe the situation I encountered:
correct:
1.unity version 2019.4.9f1
2.iap version 2.0.6
error:
1.unity version 2019.4.9f1
2.iap version 3.2.1
According to your description, I used your test project, and re-created an app on the google play console, and got the same error. This time I used unity version 2020.3.9f1 and iap version 3.2.1

 

No, I did not create a new user, I am using a user who can successfully make IAP in-app purchases

 

I had created a new user, and download the test version from google play, but i recived the the same error.
After testing, I found that this error occurs when using iap versions 3.1.0 and 3.2.1. If you use the version before the two versions, you can purchase it normally. Both use the same test user for testing.

 

Im using 3.0.1 and i have the same error.
Your APK is as Closed testing or Internal testing?

 

I have opened a conversation with you

 

internal testing

 

Unity2020.3.11
"com.unity.purchasing": "3.1.0"
Error:
onPurchaseFailedEvent(productId:cash2 message:Invalid SKU details. {M: GPUL.HEC} - Response Code = 5)
UnityEngine.Purchasing.Extension.UnityUtil:Update()

Downgrade to "com.unity.purchasing": "3.0.1"
The error is gone

 

Sorry for bumping this but I may have an issue very similar to this. But first of all, I would like to know how I can find, in the Android logcat, the information about Unity IAP and the package version.
Thanks.