From the main admin CMS on the left hand menu tab, navigate to 'Stores' then click on the hyperlink that is the storefront name in which to open up storefront settings.
Next click on the navigation bar marked as '`Passbook ' to open up the configuration table.
The following configuration window allows for the implementation of the JSON file along with the Apple Wallet certificate and password which then identifiers for e-payment systems to allow Apple pay as a payment method.
Once completed then click 'Save' and proceed with creating a payment method that will allow e-payment
For more on Apple Wallets please click on the button below:
On how to create 'Payment Methods' please click on the button below: