What kinds of discounts can we run, and is there a limit?

Both automatic cart-level discounts and code-based vouchers, with no platform cap on active discounts, price lists, or customer groups.

Both automatic discounts that apply at the cart without a code, and code-based vouchers and promo codes. Buy-one-get-one, volume breaks, customer-group rates, regional flash sales, and renewal discounts run natively. Stacking and exclusion rules live in one place, so you control which discounts combine and which cannot. There is no platform-imposed cap on the number of active discounts, price lists, or customer groups.