Apple Pay Merchant ID
Step 1 : Go to Apple's Developer Portal and log in to the Member Center to create a new Merchant ID
Step 2 : Navigate to the Certificates, Identifiers, and Profiles area of the Member Center, and then begin the Register Merchant ID process.
Step 3 : Plug in the Merchant ID from Apple's Developer Portal into the Integrate Payments portal.
Certificate Signing Request
Step 1 : In Apple's Developer Portal, click on the Merchant ID and then click "Edit".
Step 2 : Click "Create Certificate"
Step 3 : You will obtain a CSR file from a Payment Provider so you will not have to create one. Click "Continue" to proceed to the upload page.
Step 4 : Click "Choose File..." and select the Gateway.certSigningRequest file you downloaded from the Integrate Payments portal.
Every merchant account will have to stay compliant by completing a SAQ Self Assessment Questionnaire every year or they will be charged a monthly PCI non compliance fee. PCI monthly & annual fees may still apply to a merchant account based on PCI Tier level of business.