Repricers, promo engines, and AI-written discounts push prices straight to checkout — and a drifted rule can leak six figures before month-end reporting notices. Price Guard evaluates net margin on every order and holds anything that crosses your floor.
Three offers combine into a price below cost. The stack is caught at checkout, not in next month's P&L.
A rule meant to match competitors walks a hero product under your floor overnight. The gate holds the sale, not the strategy.
An assistant invents a 40% code to close a cart. Generosity gets a margin check before it ships.
Net margin clears your floor — the discount applies, recorded as a signed pass.
The order would fall below your floor — the discount is suppressed at checkout.
Item cost is missing, so margin can't be computed — flagged for cost entry, never guessed.
Start in read-only Shadow Mode: see what would have been held on your real traffic before anything is enforced. How Shadow Mode works