Gift cards give customers a way to support the brands they love and provide you with access to more cash flow. Gift cards can also be used to provide store credit, instead of issuing cash refunds.
It’s important to note that gift cards can only be redeemed through sales channels that use the Shopify checkout - like your online store, or the Buy button. If a customer makes a purchase through a sales channel that has a checkout on a third-party website, like Amazon, the gift card will not work.
To learn more check out the Shopify Help Center,Gift Cards overview. You can also see the YouTube tutorial for this below:
Nick | Community Moderator @ Shopify - Was my reply helpful? Click Like to let me know! - Was your question answered? Mark it as an Accepted Solution - To learn more visit the Shopify Help Center or the Shopify Blog