Using Community Store
The Community Store add-on for concrete5 is an open, free and community developed eCommerce system for concrete5
The add-on includes common online shop components such as a shopping cart, product lists, a checkout mechanism and ways to track orders. It is not a stand-alone system - it integrates tightly with concrete5, with blocks and pages uses to present products.
If you have the Community Store AddOn installed on your website you'll find the Store Menu in the Dashboard.