Products lets profiles sell physical items, such as T-shirts, CDs or posters, with a price, stock quantity and shipping charge. Sales go through the cart in Payment Support.
ACP > Modules > Profiles > Products
Buyers add products to their cart and check out. The seller ships the item. Shipping is paid to the profile with its payout, unless Include Shipping in Payout is off in Payment Support.
Tools > Import Store Items copies items from the old Merchandise module.