Gift cards are a special product that recipients can use as payment for orders from your online store.

Every purchased gift card has a unique code. When a customer purchases a gift card, they can email the code to their recipient or themselves.

When redeeming a gift card code at checkout, customers will see the card value subtracted from their order total. They can also see the balance remaining on the gift card.

To see the customer experience, visit How customers use gift cards.

More info here