We have also encountered this problem. We have provided feedback to Apple, and the response is to ask the user to contact the support team for a refund.
technologyfromnull
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Please take a look at this post:
https://developer.apple.com/forums/thread/748032
The issue has been resolved.
We found that setting the product name parameter of Xcode to more than 10 Chinese characters can lead to IAP failure. I don't know if this is a deliberate restriction by Apple or a bug in iOS 17.4. when we using SKProductsRequest to request product information, StoreKit will throw the following exception message:
[c3d9_SK1] Failed in XPC product request products(IDs: ["xsdqxz_tehui_1"]): Error Domain=NSCocoaErrorDomain Code=4097 "connection to service named com.apple.storekitd" UserInfo={NSDebugDescription=connection to service named com.apple.storekitd}
This is the screenshot.