Hi, Thank you for your reply! I now have API access and created the Payment Platform Integrator ID, but I’m facing an issue with this request: Endpoint: https://apple-pay-gateway.apple.com/paymentservices/registerMerchant { "domainNames": [], "encryptTo": "platformintegrator.com.zaytech.sandbox", "merchantUrl": "", "partnerInternalMerchantIdentifier": "testUuid", "partnerMerchantName": "TestMerchant" } It returns 200 OK with an empty response. Where can I find the merchant ID, or am I missing something? Thanks!

make sure you are choosing (Any IOS Device) as target. works for me with Xcode 15.0.1