I have a question regarding the file apple-developer-merchantid-domain-association.txt. I understand that this file is used during API access for Apple Pay Web payments. However, is it necessary for our company to access this file during the payment process? Also, this domain validation file is expected to be placed in the publicly accessible “.well-known” folder on our web server. Is it acceptable for this file to remain readable by third parties on the Internet, including Apple’s servers, without posing any security risks? Since this file is generated during domain registration on the Apple Developer site and is unique to our domain, we believe there should be no security concerns even if accessed by third parties. However, are there any specific security requirements for this domain validation file? Please note that the domain validation has already been successfully completed. We appreciate your time and look forward to your guidance. Best regards,

When accessing https://applepaydemo.apple.com/payment-request-api, the "Approve with Side Button" prompt is displayed, but it does not appear when using our test domain. I implemented the Payment Request API based on the sample source code from the following URL. On an iPhone device, the Apple Pay payment screen is displayed, but the "Approve with Side Button" icon below the amount does not appear, and instead a spinning loading icon is shown continuously. Could you please help identify the cause? ■ Reference URL: https://applepaydemo.apple.com/payment-request-api ■ Changed parameter: "merchantIdentifier": "〇〇.dev" ■ Accessed domain: 〇〇test.com ■ Test device: iPhone 13 iOS: 18.4.1

We would like to confirm the unsubscribe flow related to recurring payment processing. When a user unsubscribes, does your system send any notification to us? If no notification is provided, we will not be able to detect the unsubscribe event and will continue to send recurring payment requests to the gateway periodically. Would this cause any issues? We would appreciate it if you could share the specific unsubscribe flow with us. Thank you in advance for your support.

We would appreciate it if you could provide the detailed flow of recurring payments and the unsubscribe process using the Apple Pay JS API, specifically in cases where the PSP decrypts the Apple Pay token before sending it to the payment gateway. Thank you very much for your kind assistance.

Hello, We are encountering an issue with Apple Pay on the Web in the sandbox environment where payments cannot be completed because the onpaymentauthorized event is not triggered. The same implementation was working normally until March 5, but the issue started occurring consistently from March 6 without any changes to our code, certificates, or merchant configuration. Environment Apple Pay on the Web (JavaScript) Safari (iOS / macOS) Apple Pay Sandbox Merchant domain verified Merchant validation succeeds Observed Flow The Apple Pay flow proceeds normally until authentication: User clicks the Apple Pay button ApplePaySession.begin() is called onvalidatemerchant fires Merchant validation request succeeds completeMerchantValidation() is called Apple Pay sheet is displayed User authenticates with Face ID / Touch ID onpaymentauthorized is never triggered Because this event never fires, the payment token is not returned and the payment cannot proceed. ApplePaySession Request { "countryCode": "JP", "currencyCode": "JPY", "merchantCapabilities": ["supports3DS"], "supportedNetworks": ["visa", "masterCard"], "total": { "label": "Test Payment", "type": "final", "amount": "100" } } Merchant Validation Merchant validation succeeds and returns a valid session from Apple. Relevant fields from the merchant session: merchantIdentifier: 35A786BE6AB4... domainName: secure.telecom-awstest.com displayName: ApplePay Additional Notes Apple Pay sheet appears normally Authentication completes successfully No JavaScript errors are logged onpaymentauthorized is never fired Issue occurs consistently in the sandbox environment Confirmed across multiple iOS versions Question Has anyone experienced a similar issue recently in the Apple Pay sandbox environment, or are there any known changes that could cause the onpaymentauthorized event not to fire after authentication? Any insights would be greatly appreciated. Thank you.