Team, When I try using Apple pay for Japan, we are getting Payment Not Completed error for a merchant with Japanese character as the displayName at completeMerchantValidation. The same works well if the merchant has name in English. log from com.apple.passkit as explained in Apple Pay on the Web Debugging Guide 2024-04-30 12:12:21.441231+0530 0xb6bd16 Default 0x0 55547 0 com.apple.PassKit.PaymentAuthorizationUIExtension: (PassKitCore) [com.apple.passkit:Payment] Received <private> status: PKPaymentAuthorizationStatusSuccess 2024-04-30 12:12:21.441336+0530 0xb6bd16 Default 0x0 55547 0 com.apple.PassKit.PaymentAuthorizationUIExtension: (PassKitCore) [com.apple.passkit:Payment] Evaluating merchant session using PROD trust policy. 2024-04-30 12:12:21.448371+0530 0xb6bd16 Default 0x0 55547 0 com.apple.PassKit.PaymentAuthorizationUIExtension: (PassKitCore) [com.apple.passkit:Payment] State machine change state from PKPaymentAuthorizationStateClientCallback to PKPaymentAuthorizationStatePrepareTransactionDetails with param: <private> 2024-04-30 12:12:21.448393+0530 0xb6bd16 Default 0x0 55547 0 com.apple.PassKit.PaymentAuthorizationUIExtension: (PassKitMacHelper) [com.apple.passkit:PaymentUI] State change: PKPaymentAuthorizationStatePrepareTransactionDetails 2024-04-30 12:12:21.448444+0530 0xb6bd16 Error 0x0 55547 0 com.apple.PassKit.PaymentAuthorizationUIExtension: (PassKitMacHelper) [com.apple.passkit:PaymentUI] State change not implemented: PKPaymentAuthorizationStatePrepareTransactionDetails 2024-04-30 12:12:21.450878+0530 0xb6bd16 Default 0x0 55547 0 com.apple.PassKit.PaymentAuthorizationUIExtension: (PassKitCore) [com.apple.passkit:Payment] Performing request: POST <private> { 7 <private> fields } 500 bytes 2024-04-30 12:12:22.642216+0530 0xbaa237 Default 0x0 55547 0 com.apple.PassKit.PaymentAuthorizationUIExtension: (PassKitCore) [com.apple.passkit:Payment] Task Completed: <private> 2024-04-30 12:12:22.642348+0530 0xbaa237 Default 0x0 55547 0 com.apple.PassKit.PaymentAuthorizationUIExtension: (PassKitCore) [com.apple.passkit:Payment] Response: <private> 400 Time profile: 1.19145 seconds { 6 <private> fields } 232 bytes 2024-04-30 12:12:22.642571+0530 0xb6bd16 Default 0x0 55547 0 com.apple.PassKit.PaymentAuthorizationUIExtension: (PassKitCore) [com.apple.passkit:Payment] State machine change state from PKPaymentAuthorizationStatePrepareTransactionDetails to PKPaymentAuthorizationStateFatalError with param: <private> 2024-04-30 12:12:22.642617+0530 0xb6bd16 Default 0x0 55547 0 com.apple.PassKit.PaymentAuthorizationUIExtension: (PassKitMacHelper) [com.apple.passkit:PaymentUI] State change: PKPaymentAuthorizationStateFatalError 2024-04-30 12:12:22.642757+0530 0xb6bd16 Error 0x0 55547 0 com.apple.PassKit.PaymentAuthorizationUIExtension: (PassKitMacHelper) [com.apple.passkit:PaymentUI] Payment failed with fatal error <private> 2024-04-30 12:12:22.643288+0530 0xb6bd16 Default 0x0 55547 0 com.apple.PassKit.PaymentAuthorizationUIExtension: (PassKitCore) [com.apple.passkit:Analytics] subject: inApp event: <private> 2024-04-30 12:12:22.659154+0530 0xb6bd16 Default 0x0 55547 0 com.apple.PassKit.PaymentAuthorizationUIExtension: (PassKitMacHelper) [com.apple.passkit:PaymentUI] glyphView - revealedErrorAction() 2024-04-30 12:12:24.633308+0530 0xb6bad7 Default 0x0 55529 0 Safari: (PassKitMacHelperTemp) [com.apple.passkit:Payment] Invalidate extension <private> identifier <private> 2024-04-30 12:12:24.653014+0530 0xb6bd16 Info 0x0 55547 0 com.apple.PassKit.PaymentAuthorizationUIExtension: (PassKitCore) [com.apple.passkit:Connections] PKInAppPaymentService:0x12bf1b660 (0x1290e2a80): Tearing down existing connection 2024-04-30 12:12:24.653173+0530 0xbaaa12 Info 0x0 68603 0 passd: [com.apple.passkit:Connections] PDXPCServiceListener 2 (0x127705150:55547): connection invalidated 2024-04-30 12:12:24.654891+0530 0xb6bd16 Default 0x0 55547 0 com.apple.PassKit.PaymentAuthorizationUIExtension: (PassKitCore) [com.apple.passkit:Analytics] subject: inApp event: <private> As we can see, com.apple.PassKit.PaymentAuthorizationUIExtension: (PassKitMacHelper) [com.apple.passkit:PaymentUI] Payment failed with fatal error <private>, how do we debug this further?