Dokan is the most popular user-friendly multi-vendor marketplace plugin equipped with most of the features needed to manage a multi-vendor store. Dokan is Compatible with any WooCommerce theme available in the WordPress theme marketplaces. It also provides a premium quality Dokan theme to build a site.
Dokan theme comes free with the paid version of Dokan. You can not use it with the free version. You can post all your support questions to the plugins support forum in WordPress.org
What is a Multi–Vendor Website? In a nutshell, a multi vendor marketplace is a site containing offerings from multiple sellers (vendors, suppliers). All suppliers pay a wise commission for selling in the marketplace. They have their own seller accounts where they manage their inventory themselves
To do an automatic install of WooCommerce Multivendor Marketplace, log in to your WordPress dashboard, navigate to the Plugins menu and click Add New. In the search field type “WooCommerce Multivendor Marketplace” and click Search Plugins.