Once you have at least one publicly accessible map that is For Sale on the Map Store, a vendor landing page will be automatically generated for the Map Store within 24 hours. The landing page lists all of your public maps. The link to your landing page is great to distribute to your customers, where they can see all your own products, without needing to search the greater Map Store.
You can access this page from the homepage of your vendor site, on the right panel.
Map Store landing page link