According to Walmart's coupon policy, WIC purchases are accepted by all Walmart stores. However, certain restrictions apply to these purchases and vary based on the purchase and location.
There are no limits or restrictions on the actual WIC purchases themselves, but rather on the returns for such purchases. Depending on individual state guidelines, WIC purchases may not be eligible for cash back following a return, but rather a credit back to the basket. This restriction does not apply in every state, and no restrictions affect Walmart's ability to accept these purchases or any made by most legal coupon or savings systems.