The Products feature is available in the Sales Pack extension.
Products can be added as line items to order records such as Quote, Sales Order, Invoice, and Purchase Order. Each product can be linked to a category. Categories can be arranged in a hierarchical tree structure, where each category may include subcategories.
The product price can be defined either directly in the product or separately in Price Books.
Products can be associated with tax classes. This enables automated tax application based on defined tax rules.
The Inventory Management feature enables tracking of product item’s availability.
The Product entity type is available for customization in the Entity Manager – you can create new fields and link it with other entity types.
Documentation
For more information on the Products feature, see the documentation.