Apple Pay Merchant validation Url - ambiguous API documentation

Hello, I was going through the Apple Pay API documentation and noticed ambiguity on the exact process to complete merchant validation. One of the documentation mentions that the validation url will be

Your server posts a request using mutual TLS (mTLS) by calling the Apple Pay server’s Payment Session endpoint.

Endpoint (Global) POST https://apple-pay-gateway.apple.com/paymentservices/paymentSession

Endpoint (China region) POST https://cn-apple-pay-gateway.apple.com/paymentservices/paymentSession

Referencing the url: https://developer.apple.com/documentation/apple_pay_on_the_web/apple_pay_js_api/requesting_an_apple_pay_payment_session

whereas the other references that the value should be used as provided by the onvalidatemerchant event object with the property validationURL.

Refer: https://developer.apple.com/documentation/apple_pay_on_the_web/apple_pay_js_api/providing_merchant_validation

Can someone confirm which is the correct approach to follow ?

Apple Pay Merchant validation Url - ambiguous API documentation
 
 
Q