Quantity discounts based on same item
I am trying to implement quantity discounts based on the number of the same item ordered. I can see that I can apply a discount based on the quantity of a specific item in the cart but as I understand it I would have to provide the specific item number. I want this to work across the whole site (roughly 4000 products) so the customers can get a discount for buying 5 and 10 of the same product. To do this using the quantity of a specific item in the cart trigger would require 4000 rules. Could you kindly point me in the right direction? This is a customer request for an ASP site.