Drop shipping can occur when a small retailer who typically sells in small quantities to the general public receives a single large order for a product. Rather than route the shipment through the retail store, the retailer may arrange for the goods to be shipped directly to the customer.
Many sellers on online auction sites, such as eBay, also drop ship. Often, a seller will list an item as new and ship the item directly from the wholesaler to the highest bidder. The seller profits from the difference between the winning bid and the wholesale price, minus any selling and merchant fees from the auction site.