Unity IAP Service - Item already purchased error

Hello,

I am having an issue attempting to port our Unity IAP to Android. We have an implementation and menu flow that we have testing successfully on iOS. The same call sequence appears to fail on Android. The purchase always seems to fail with an "Item already owned".

After we discovered this issue, we reset our test device, and created a new Google test account. So I'm quite sure there are no purchases on the device or in the cloud.

We are using Unity 5.3.4
Testing on a Samsung Galaxy Tab A, Android 5.0.2

Log follows:

=================================

07-15 09:57:13.275: I/Unity(5119): Purchasing product asychronously: 'com.product.episode2'
07-15 09:57:13.275: I/Unity(5119):
07-15 09:57:13.275: I/Unity(5119): (Filename: ./artifacts/generated/common/runtime/UnityEngineDebugBindings.gen.cpp Line: 37)
07-15 09:57:13.275: I/UnityIAP(5119): onPurchaseProduct: com.product.episode2
07-15 09:57:13.275: I/UnityIAP(5119): ITEM TYPE:inapp
07-15 09:57:13.305: I/Unity(5119): purchase({0}): com.product.episode2
07-15 09:57:13.305: I/Unity(5119):
07-15 09:57:13.305: I/Unity(5119): (Filename: ./artifacts/generated/common/runtime/UnityEngineDebugBindings.gen.cpp Line: 37)
07-15 09:57:13.405: I/Unity Purchasing(5119): Creating purchase activity
07-15 09:57:13.405: I/UnityIAP(5119): invoking callback
07-15 09:57:13.405: I/UnityIAP(5119): Constructing buy intent for com.product.episode2, item type: inapp
07-15 09:57:13.425: I/UnityIAP(5119): Launching buy intent for com.product.episode2. Request code: 999
07-15 09:58:37.665: I/UnityIAP(5119): onActivityResult
07-15 09:58:37.665: I/UnityIAP(5119): Purchase canceled - Response: 7:Item Already Owned
07-15 09:58:37.665: I/UnityIAP(5119): onIabPurchaseFinished: false
07-15 09:58:37.665: I/UnityIAP(5119): User canceled. (response: -1005:User cancelled)
07-15 09:58:37.665: I/UnityIAP(5119): Purchase response code:-1005
07-15 09:58:37.805: I/Unity(5119): onPurchaseFailedEvent({0}): com.product.episode2
07-15 09:58:37.805: I/Unity(5119):
07-15 09:58:37.805: I/Unity(5119): (Filename: ./artifacts/generated/common/runtime/UnityEngineDebugBindings.gen.cpp Line: 37)
07-15 09:58:37.815: I/Unity(5119): Purchase Failed
07-15 09:58:37.815: I/Unity(5119):
07-15 09:58:37.815: I/Unity(5119): (Filename: ./artifacts/generated/common/runtime/UnityEngineDebugBindings.gen.cpp Line: 37)
07-15 09:58:37.815: I/Unity(5119): OnPurchaseFailed: FAIL. Product: 'com.product.episode2', PurchaseFailureReason: UserCancelled
07-15 09:58:37.815: I/Unity(5119):
07-15 09:58:37.815: I/Unity(5119): (Filename: ./artifacts/generated/common/runtime/UnityEngineDebugBindings.gen.cpp Line: 37)

===================

Has anyone seen similar issues? Any insight or direction would be appreciated.

 

maybe this?

http://forum.unity3d.com/threads/bizarre-iap-behaviour-on-android.412981/

 

What version of our store package are you running? You can find this in your project's Unity IAP folder at the top of Changelog.md.

If you are running a version less than 1.6.0 this erroneous behaviour will happen in Google's sandbox environment.

Please make sure you're running the latest version of our store package (1.6.1 at time of writing)

 

We tried the update to 1.6 and the issue remained. In our case however it only seems to happen with the use of redeem codes to purchase. Adding valid a valid credit card to test purchases doesn't exhibit this issue.

 

Upon investigation I have found one promo code issue which is that promo codes redeemed whilst the App is running will not be detected until App restart. This will be fixed in our next store release.

Does ProcessPurchase get called when you restart the App?

 

I believe so, as the item does appear as purchased after restarting the app.

 

In which case our next release should fix this for you, likely in the next couple of days.

 

After reactivating Unity Service In-App Purchasing component in UnityEditor, 999 error disappear and all works fine..

 

Using version 1.11.4 of Unity IAP, and the same problem occurs.
This was supposed to be fixed in 1.8.0 (2016-08-23), as per https://forum.unity3d.com/threads/unity-iap-store-package-1-11-4-is-now-available.415517/. Is there a regression here?