



We have discovered that when you try to apply another code, it will remove the existing code and replace it. While you can apply multiple Costco coupons at an in-person store, you can only apply one promo code to your online order. If you are still having any trouble, try a different Costco coupon from CouponFollow instead. Make certain the discount code which you selected is valid and has not yet expired. What to Do if Your Costco Coupon Code Isn't WorkingĬheck that you have correctly input your Costco promo code.Įnsure your order meets the minimum purchase amount or any other requirements. Click the “Checkout” button.Įnter your promo code in the “Promo Code” input box.Ĭlick the “Apply Code” button to enjoy your Costco discount. When you find an item that you like, click “Add to Cart” on its product page.Ĭhoose “View Cart” on the panel that appears in the center of the screen.
