Some common promotions include order discounts, a discount on an item in an order, a buy one get one discount, customer referral, and promo codes.
Promotion Action: Discount - Order
Promotion Action: Discount - Line Item
Promotion Condition: Referred Customer Order
Promotion Action: Shipping Discount
Promotion Action: Award Credits
Promotion Condition: Promo Code
For additional information about promotions, see the following:
Promotion Builder (Promotions)
Promotion Actions
Promotion Conditions
Promotion Collections
Promotion Engine Overview
Promotion Set Up
Promotion Types