Product: Anything you are selling in your shopping cart is considered a 'Product'. All products must be in either a category or subcategory. Every product has the following pre-defined fields:
 
Field Required? Description
Item Number Yes An ID value that is unique. It can be a combination of letters and numbers.
Category Yes This identifies which category this product belongs to.
Name Yes This is a text name used to descriptively refer to this product.
Price Yes The unit price of this product in US dollars. Do not add commas or the dollar sign.
Weight No If applicable, how much does this product weigh? This is most often used for the calculation of shipping costs. If you leave this blank or zero, no weight attribute will be displayed on the customer checkout page. The unit of weights is specified on the "Look and Feel" page. An example of a zero weight product is a service provided for sale.
picture URL No If you desire to show a picture of the product on the product detail page, you must provide a complete URL and path to where the image resides. For example, you may enter http://www.yourwebsite.com/image/myproduct.gif

Product Fields: Any additional product fields beyond the pre-defined fields listed above are determined by those additional user-defined category fields. After defining additional category fields, then all products added to this category will automatically have these extra fields. However, note that if you add category fields to a category after a product is added, the fields will NOT be added to that product.