Drift is the gap between the price you meant and the price your systems are charging — a repricer inching down, a sync failing quietly, a promo that never expired. Drift Reports watch that gap continuously and tell you where money is leaking, in dollars, before quarter-end does.
A competitor-match rule drifts a bestseller down 2% a week. Visible in the report at week one, not in margin review at month three.
A sale ended; a code didn't. Every redemption since is drift — counted and priced in the report.
Your ERP updated a cost; the storefront didn't. The gap between systems shows up as a named, dated finding.
Charged prices match intended prices — the report proves quiet weeks too.
A price walked away from your intention — flagged with the product, the rule, and the dollars.
Missing cost or intent data — named as a blind spot instead of pretending coverage.
Start in read-only Shadow Mode: see what would have been held on your real traffic before anything is enforced. How Shadow Mode works