The integration with YITH WooCommerce Multi Vendor allows the admin to split the price of one or more products between the vendor and the admin immediately after the checkout and based on the commission rate that you’ve agreed with them.
First of all, make sure you’ve downloaded and installed the premium version of YITH WooCommerce Multi Vendor and configure your marketplace as explained on the official documentation of Multi Vendor plugin. Enable YITH Stripe Connect for WooCommerce from Plugins menu.
Configure it as explained on the page Connect admin account from the official plugin documentation.