Coupon codes are a type of promotional code that can be entered during the checkout process to receive a discount on the purchase. The codes are usually distributed through email, social media, or the company's website. They can be specific to a particular product or a category of products, and may be valid for a limited time only.
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Gift cards, on the other hand, are prepaid cards that can be redeemed for purchases at a particular store or for a specific product. They can be purchased online or in-store and come in a physical or digital format. They are often given as gifts to friends and family, but can also be purchased for personal use.