Use this feature to enable the Instant Purchase (Express Checkout) on product-detail pages. This feature is for credit and debit cards only on the Access Worldpay gateway.
To configure and enable the Instant Purchase feature, do the following:
Go to Stores > Configuration > Sales > Sales > Instant Purchase and enable the default Magento option for Instant Purchase.
Go to Stores > Configuration > Sales > Access Worldpay and enable Instant Page Checkout.
The Instant Purchase feature appears if the shopper has saved their credit card in the My Account section. This saved credit card information comes from previously placed orders or through the saved card feature. Here’s what happens:
The shopper goes go to Store front > login > Product Details Page.
On the Product Details page, the shopper clicks the Instant Purchase button. An Instant Purchase Confirmation window appears. It contains a shipping address, billing address, payment method and shipping method. See the example screenshot below:
The shopper places the order direct from the product-detail page.
Note: If 3DS Flex is enabled, when shoppers click the Instant Purchase button, they are redirected to a challenge page. When they answer the challenge and the transaction is successful, they are redirected to a success page.