Commerce is a flexible and extensible platform, and just like Craft we have provided hooks and events to enable developers to add features to the system.

Events Referenced — Listen for Craft Commerce events and run PHP code.

Hooks Reference — Modify Craft Commerce behavior.

Purchasables — Add an element to the system that is able to be sold by Commerce.

Adjusters — Make any price adjustment to an order.

Shipping Methods — Add third party shipping methods and return shipping prices.