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    Enrolling in Apple Pay
    Apple Pay is a digital payment service that enables users to make secure and convenient
            transactions using their Apple devices. Users can add their credit or debit cards to the
            Wallet app and use them to pay online or in apps in a safe and convenient consumer
                experience.
To enable Apple Pay you must first host a public certificate on your
                web page and then pass your merchant name and domain name to Apple. Apple crawls out
                to your web page to validate the presence of this certificate to ensure the web
                pages are properly vetted and registered with Apple.
Follow these steps to
                validate your domain and enroll in Apple Pay:
- Navigate toPayment Configuration >.Unified Checkout
- In the Apple Pay section, clickSet Up.
- Follow the link to download the certificate.
- Upload theapple-developer-merchantid-domain-associationcertificate file to your web server at:/.well-known/apple-developer-merchantid-domain-associationYou must verify that the file is accessible through HTTPS. You can validate this by visitinghttps://<your-domain>/.well-known/apple-developer-merchantid-domain-association.
- ClickVerify Domain.
- Enter the domain name where you are hosting Apple Pay. This must be the same domain to which you uploaded the public certificate.Your domain is now verified for Apple Pay.
AFTER COMPLETING THE TASK
IMPORTANT
In order to run an end-to-end test of the Apple Pay service on 
Unified Checkout
,
            you must perform additional setup steps. See
            Preparing a Device for Testing Apple Pay on Unified Checkout.