Costs & rules
Track purchase (supplier) discounts
Lower the product cost the app uses when a supplier gives you a discount, so profit reflects what you really paid.
Updated June 30, 2026
When a supplier gives you a discount off your normal cost - a volume deal, an early-order deal, or similar - a purchase discount rule lowers the product cost the app uses on matching products. Your profit then reflects what you actually paid, not the list cost. A discount only applies on top of a known product cost, so set the product cost first.
Steps
- Open Cost rules, then Purchase discounts (/app/costs/purchase-discounts).
- Click Add rule.
- Give the rule a name and set a priority from 1 to 999 (lower numbers run first).
- Under "Match by", choose Vendor, SKU starts with, Product tag, Product type, or Title contains, then enter the value to match.
- Choose a discount type: Percentage off cost, Fixed amount off per item, or Cost multiplier (for example 0.95 means 5% off).
- Enter the value.
- Turn on Stackable if this discount should combine with other matching stackable discounts. Leave it off if only this one should apply.
- Click Add rule.
What you should see
The rule appears with its match, its discount, its priority, and a "stackable" tag if you set one. On matching products the cost drops by the discount, so profit rises to match what you really paid. The discounted cost never goes below zero.
Tip
Stacking works in priority order. The first matching rule by priority always applies. If that rule is stackable, any other matching stackable rules are added on top. If the first match is not stackable, only that one applies.