Issue with IAP

[GauravUMX612]

We have integrated the HMS Evil Minds Plugin in our game, and we are encountering a significant issue with the In-App Purchases (IAP) functionality. When we initiate the IAP process to purchase a product, we do not receive any callback from the IAP plugin. This issue causes our game to get stuck, preventing users from receiving their rewards and completing the purchase process.

Steps to Reproduce:

Step1 : Integrate the HMS Evil Minds Plugin into a Unity project.
Step2 : Implement the IAP functionality as per the documentation.
Step3 : Attempt to purchase any product within the game.
Step4 : Observe that no callback is received from the IAP plugin.

Expected Behavior:
Upon initiating a purchase, the IAP plugin should return a callback indicating the success or failure of the transaction, allowing the game to proceed and the user to receive their rewards.

Actual Behavior:
No callback is received from the IAP plugin, causing the game to hang and preventing the user from receiving their purchased rewards.

Environment:

HMS Evil Minds Plugin Version: 2.3.7
Unity Version: 2021.3.4f1

Additional Information:

We have verified that the IAP configuration and setup are correct as per the documentation.
No errors or logs are generated when the issue occurs, making it difficult to diagnose the problem.
Please investigate this issue at your earliest convenience, as it is critically affecting our game's user experience. If you require any further information or logs, we would be happy to provide them.

Thank you for your assistance.

[github-actions]

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We will get back to you as soon as possible.
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[Andronovo-bit]

Hi, @GauravUMX612 , thank you for sharing problem clearly.

We tested our demo scenes, and we didn't face any problems.

1. You should enable the IAP Kit in Unity and the AG Connect Panel.

2. You should be sure to add the correct item ID and type

3. You should revise our IAP scenario. You can look at our demo scenes and scenerio.

4. You should be sure to initialize the IAP kit and register your callbacks "OnBuyProductFailure" and "OnBuyProductSuccess". Also, users have to sign in to buy any product.

5. We keep a log record that starts "HMS" in all kits. You can search using this keyword.

If you don't mind could share the log record? We can analyze your log record.

[GauravUMX612]

Hello @Andronovo-bit thank you for Quick Response

I will Check out all Details provided
and also create an Demo Project rather than main Project
will share further logs or details here

[GauravUMX612]

Hello @Andronovo-bit

I Created one Demo Project and I am Getting
[HMSIAPManager]: Order Payment Failed
for 2 time before getting Purchase Success Callback

Checkout Full Logs
HMSIAPLogs.txt

[Andronovo-bit]

@GauravUMX612 Hi,

• You have to make sure that Initilize is finished.
• You can also use some methods to determine whether the user owns a product or not.

1. HMSIAPManager.Instance.GetProductsList()
2. HMSIAPManager.Instance.isUserOwnThisProduct(productId)

Maybe, you can try purchase operation after these methods.

[GauravUMX612]

@Andronovo-bit Hello,

• I made the purchase after the IAP is Initialized
• And for Getting the Product Info I am calling GetProductInfo by giving them list of product ids after intialization Success
• And also i am calling method RestoreOwnedPurchases after the intialization is successfull so i dont think its an issue of owned purchase
• Still i added the condition of isUserOwnThisProduct if its true then i am again calling the RestoreOwnedPurchases otherwise i am calling PurchaseProduct

Then also getting same results and Logs
For this time i also sending Code we are using checkout that and let us know if any changes required

HMSIAPLogs 13-06-2024.txt
DomeCode.txt

[Andronovo-bit]

Hi @GauravUMX612 thanks for sharing your demo code and log records,

Can you look at this IAP flowchart ? I try to explain basically IAP scenerio.

Can you try to purchase after these steps in diagram ?

And also, I know before I said below things but can you check again ?

1. Enable Account kit - IAP from kit settings. https://evilminddevs.gitbook.io/hms-unity-plugin/getting-started/quick-start/connect-your-game-with-the-hms-kit-managers
2. Make sure you enabled IAP and Account kit services in the AppGallery console. https://developer.huawei.com/consumer/en/doc/development/HMSCore-Guides/config-agc-0000001050033072#section382112213818
3. Add These products to your project. (with same productID) https://developer.huawei.com/consumer/en/doc/development/HMSCore-Guides/config-product-0000001050033076
4. Add these products to IAP tab. Unity > Huawei > Kit Settings > IAP. Then click create constant classes

[GauravUMX612]

Hello @Andronovo-bit Please Check I followed all the steps mentioned above and still getting same results
here are the screenshots and logs


HWLogs 24-06-2024.txt
DemoCode 24-06-2024.txt

[Andronovo-bit]

Hi @GauravUMX612 ,

I guess, we have a some problems about after purchase status control mecanism.

Can you try below code changes in HMSIAPManager.cs file ?

Also callback is working. You can add "Debug.Log" in success("OnBuyProductSuccess") and failure("OnBuyProductFailure") methods on your demo code and you can see it on the android logcat.

[GauravUMX612]

Hello @Andronovo-bit

The Purchase Failed and then Purchase Success Issue Solved by Updating Code as you mentioned
But I need to verify the Plugin issue where it was not giving any response to the game and plugin getting crashed
I will test that with our QA team and Let you Know
Thank you

[GauravUMX612]

HW.Plugin.Crash.Issue.mp4

Hello @Andronovo-bit Checkout the Video Provided with Logs window where our QA Team Member is facing a problem of Plugin Crash / Black Stuck Screen After Purchase Completed and not giving any response back to the game

[Andronovo-bit]

Hi @GauravUMX612, We watched this video and reviewed the logs. I believe this is a problem with the screen orientation. After success purchase, as I see, the screen is forced to change orientation.

We tried the demo scene in the plugin and, as you can see in the video below, there were no issues.

Unity_l7Ejn18HUL.mp4

[GauravUMX612]

Hello @Andronovo-bit
I didn't got you what was the issue in the video i sent because in that you can clearly see the plugin crashed or stuck at some black screen

and if its an orientation issue how can i fix it

[Andronovo-bit]

@GauravUMX612 , At 18 seconds into your video you can see that there is a point that forces it to be vertical or forces to rotate.

I think, you can check the project screen rotation(Oriantation) codes in your project, or you can check if there is any forcing in one direction or the other.

As you can see thare isn't any forcing in I send video before. Screen Oriantation always selected as a "LandscapeLeft".