The Products module will be the heart of your e-commerce solution . This module is the place where products that you would like to sell in your shop are saved. Generally, it is possible to use any other module for the solution, but this would imply that you have to make some heavy modifications to your templates and, probably, the PHP code of the modules.
With the Products module, you can manage:
Products
Product attributes that will have an impact on the price (like size or color)
Categories
Product hierarchy
Custom fields
This module is the basis for all other modules that you will use later on. After all, you cannot start a shop if you do not have any place to store the products.
Install the Products module with the Module Manager. Pay attention to the Dependencies section of the module before installing it. There are two (CGExtensions and CGSimpleSmarty) modules that provide convenience APIs, reusable forms, and Smarty tags for use in other modules. If you are not a programmer...