BOGO
Sections:
Buy 2 and get 1 free
Buy 2 from Category A and get 1 free from the same Category A
Buy 2 get the second cheapest item at 50% discount
Buy 2 and get 1 with 50%
Buy 2 and get the third cheapest product free
Buy 2 Product A and get third quantity free
Buy 2 and get 1 cheapest free (repeat)
Buy any 1 from Category A and get 1 from Category B
Buy 10 Quantities of Product A and get cheapest among Product B, C or D
Buy any items from Category A and get 20% discount on Category B
Buy 3 for $10
Buy 2 pair of sunglasses at $30
Buy any tagged products and get ONCE same product
Buy 2 products and get 2 another products for free
Buy 20 and get 1, Buy 30 and get 2, Buy 40 and get 3 and so on
The exclusive rule is pro feature.