those were advertised, or not receiving any products at all. One effect of drop-shipping is that customers who receive a drop-shipped package will realise that they overpaid for the item, return the item to the seller, then reorder the identical item directly from the manufacturer. The cost of processing the return and the loss of the unsalable returned product can result in significant losses to the drop shipper. See also Fulfillment house Logistics Mail forwarding Mail order Order fulfillment Will call References Retail processes and techniques Supply chain management