This description applies to adding a coupon code while shopping at Walmart Grocery. If you are looking for Walmart.com, click here.
When you are ready to pay, click Check out
Add suggested items, or proceed to checkout.
Choose Pickup Store.
Reserve a time slot.
Add your credit card.
Confirm your payment information.
You will see the opportunity to enter the promo code appear in the lower left hand portion of the page.