Prepare the merchant integration.
Configure the merchant identity, certificates, supported networks and required payment endpoints. The merchant gateway owns processing; the message channel does not settle the transaction.
Connect Apple Pay to your merchant gateway and order system. Keep customer authorization, payment processing and order confirmation distinct.
Keep the product, payment and order connected.
Your processor confirms the payment. Your application completes the purchase.
Could I order two of these?

Of course. Two vases, delivered to you.
Thanks, Alex. Order HBR-2048 is confirmed.
Harbor · HBR-2048
Your processor confirmed €54.00. The order and customer receipt now agree.
Connect an in-conversation purchase to your payment flow.
Configure the merchant identity, certificates, supported networks and required payment endpoints. The merchant gateway owns processing; the message channel does not settle the transaction.
Read items, quantity, tax, shipping and currency from the commerce system. Explain the purchase before opening the native payment interaction.
A customer can authorize while the processor result remains pending. Reconcile the original attempt before another charge, and keep unpaid or declined orders out of the success path.
Organize teams in workspaces, control API access, and trace changes through audit logs.