The promotion platform lets most of these configurations be mixed and applied to any offer, so you can run different promotion shapes and find what works for your customers and your business model.
Don’t stack too many limits on one offer. Complex combinations make it hard for a customer to understand what the discount is and how it was calculated.
Product-level offers
The discount applies to the product that qualifies for the promotion.
Basket-level offers
The discount applies to the entire basket if the rules are met.
Basket Reward
One or more items discounted or free once the basket value passes a threshold.
Mix & Match
Discounts for buying two or more products together.
Mix & Match Total Price sets one price for several items bought together in given quantities — a daily menu of a main meal, a snack and a drink for $8, or a movie night of 2 bags of chips and 4 drinks for $6.
Buy X get 1 free is best built as Mix & Match — buy 2 Coca-Cola, get 1 Coca-Cola free. It can also be done as a simple product offer.
Quantity Tier (buy more, pay less)
Applied each time a defined quantity is reached; multiple steps are available.
Threshold Discount
A discount applied to every n-th item once a quantity threshold is reached.
Availability is not stated here. This page lists the discount shapes the platform supports, not which of them are enabled in your app. Basket Tier (TotalStep) is documented in Discount types; this page has no worked example for it yet. 
