Product categories that are "not seeing is not buying" or never had the idea to buy a menu of addresses to use in everyday life. You shall try to remove item. This category. Place the item it is selling or the type of customer.
Product categories "No, I do not buy" or customers never have thought to buy the menu, shopping for everyday ago. Let's try to bring this product to the product that is selling well. Or as customer demand
Product type. "I can't buy." Or customers never have thought to buy in the menu shopping for daily use. Try to arrange the merchandise of this type, put to the types of goods are sold. .