To import the product catalog to the Reseller Marketplace, go to Provider Panel > UX1 > Sales Channels, click Home page in the left navigation pane, click RESELLER MARKETPLACE at the top, and then click Import Catalog.
To import the product catalog to the Customer Marketplace, go to Provider Panel > UX1 > Sales Channels, click Home page in the left navigation pane, click END-CUSTOMER MARKETPLACE at the top, and then click Import Catalog.