A product is an item or service that your company sells. In the subscription economy, a product is generally a service that your customers subscribe to rather than a physical item that they purchase one time. For example, customers subscribe to a service that provides them a car when and where they need a car rather than buying a car outright.
A Product object contains all of the items in a specific product, especially product rate plans and product rate plan charges. Each Product object can have multiple rate plans, which in turn can each have multiple rate plan charges. Each rate plan charge can have multiple tiers. Taken together, all of these items create a single product.
Customers subscribe to products that are in your product catalog. Product objects collectively compose your product catalog. You create your product catalog by creating products. As soon as you create your first product, you create your product catalog.