The customer scans their fingerprint on the device's Touch ID to authenticate the purchase. The authentication process is slightly different depending on the device the customer is using: On an iPhone or iPadĪ prompt appears on the device, telling them to confirm the purchase by using the Touch ID on their device. The customer then has to authenticate the purchase. After they do, they'll see the shipping and billing information they added to their wallet, as well as the cost of the order, shipping rates, and taxes. The customer can tap or click the button to make a purchase with Apple Pay. When a customer visits your online store using Safari on iOS 10 or macOS Sierra, they see a button with the Apple Pay logo. Your customers can now use Apple Pay to check out on your store. In the section for your credit card payment provider, click Manage. From the Shopify app, go to Store > Settings.