Walmart will offer the free shipping code with the specific conditions for each order. For the order over 60%, you can purchase for free shipping with a weight not exceeding the allowed quantity.

To use the Walmart coupons on their website, you need to meet the conditions:

•  The items you choose must meet all coupon requirements as explained in the Terms and Conditions.

• The coupon has not expired. 

• The seller uses the Walmart checkout system or a customized checkout system that accepts the coupon.

To avoid this problem, you should check out carefully Walmart promo code before that promo code could be expired, some promo codes are tied to a minimum purchase, a first-time purchase, or tied to geography, and other reasons.

It depends! Normally, the percentage that you can save with that Walmart Coupon will be shown right on the page, so you can see if it is applied sitewide or not. However, once you are not sure, try it right on their's products you want to buy.

Our advice for you to use Walmart Coupon effectively is to choose the right day.
Like thousands of other consumers, the time of promotion is when they choose to
shop at Walmart, so take advantage of coupons released on those days to save.