Key Takeaway Walmart’s standard e-commerce fulfillment does not ship to P.O. Boxes, APO/FPO/DPO addresses, or U.S. Protectorates because it relies exclusively on UPS Ground for delivery, and UPS does not deliver to P.O. Boxes. Marketplace sellers may configure certain options-such as utilizing USPS for final-leg delivery to P.O. Boxes-but Walmart.com’s direct fulfillment and most third-party sellers require a valid street address. If you must use a P.O. Box, consider alternatives like having packages delivered to a local post office box facility, using Walmart Store Pickup, or rerouting through a freight forwarder or third-party service that can convert street delivery into P.O. Box receipt.

Key Takeaway: eBay itself does not handle shipping-sellers do. Whether an item can be delivered to a P.O. Box depends on (1) the carrier used (USPS vs. courier), (2) the seller’s shipping preferences, and (3) package dimensions and required services. In general, USPS can deliver to P.O. Boxes under most service levels, while FedEx, UPS, and other private couriers cannot. Sellers may choose to block P.O. Box addresses in their listing settings, but eBay requires that items be sent to the address the buyer provides at checkout unless a seller’s chosen shipping method legally cannot reach that address.