Almost all sites offer the following services: Analytics tools that will help predict demand and expand the range; Marketing and promotion among competitors within the service; Electronic document management; Work with returns: the employees of the market themselves pick up the goods that did not fit and bring them back to the warehouse.
For the consumer, plus the marketplace is in the choice. Compare offers, read reviews, order the most profitable option with delivery to your home or pickup point. The platform is responsible for the service. If something does not suit you, the goods can be returned.