"Redeemable at Walmart" coupons can be used at other stores

It is confusing and frustrating to use a manufacture coupon with a Walmart logo on it at other stores such as Target and Kroger. The cashier will not take it just because there is another store's name or logo on it. Look at the examples on the top, on the coupon it says "redeemable at Walmart" or "available at Walmart", can they be used at Kroger, Target, and other stores in addition to Walmart? YES! As long as it says manufacture coupon on it (But store managers can make their own decision about accepting any coupon). And I find out an answer from coupons.com today (print it out and take it with you to the store):

If my coupon says "redeemable at Walmart" or "available at Walmart" can it be used at other stores?

• Our coupons are valid manufacturer coupons and should be accepted at any retailer that accepts printable coupons. Verification of coupon can be confirmed. 

• A coupon may say Redeemable at Walmart or Available at Walmart but that is a suggestion to use it at that store. As a valid manufacturer coupon, it can be accepted by other retailers.