Often, a marketplace offers additional services: attracting customers through advertising, promoting a store on the site, automating workflow, solving problems with returns, providing valuable analytical data to merchants, for example, which of the popular products are in short supply now.
What are the benefits of the marketplaces themselves from cooperation with suppliers? It all depends on the chosen monetization method. One of the most common is to charge a commission on every sale (typically 5% to 25%), like eBay, for example. The commission can be paid by the seller or the buyer, or both. In addition, the site may charge fees for packaging goods, warehousing and logistics services, and in some cases, for returning goods that the buyer refused.
Some marketplaces charge suppliers for the fact of accessing the online market (membership fees), placing goods and services on the site (listing), displaying positions on the home page, or prominent places in product categories (featured). There are many options for monetization. It is convenient to work on a mixed model, offering suppliers several payment methods at once. The Ukrainian marketplace Prom does so, combining the classic annual subscription and promotion using its own advertising tool ProSale, with pay per click.