To use a Walmart promo code, customers simply add eligible items to their online cart and enter the code into the designated “Promo Code,” “Discount Code,” or “Add a Promo Code” box during checkout. If the code is valid and matches the terms of the offer—such as minimum purchase requirements, applicable categories, or new-customer-only conditions—the discount is automatically deducted from the order total.

https://walmartpromocode.com/