A single pricing mistake can wipe out a week of margin. GuardUp catches it first.Every merchant has had it happen: a variant price drops from $99.00 to $9.90 because of a misplaced decimal. Or a 70% coupon goes live because someone typed an extra zero. GuardUp watches every price change and every discount in real time, surfaces the problem in your dashboard, and lets you fix it in one click.Module A - Price IntegrityFlags any variant price drop of 90% or more as a likely typo. Also alerts on softer drops above your configurable threshold (default 50%). You set the line; GuardUp enforces it.Module B - Coupon AlertsTwo rules, both configurable: a high-discount alert fires when a new coupon exceeds your threshold (default 30%), and a stacking alert fires when a coupon over 20% is set to combine with product discounts.Module C - Inventory AuditScans your catalog for variants with Continue selling when out of stock turned on while stock is at zero or below.How it works1. Install and complete the 2-step onboarding wizard to configure your alert thresholds.2. GuardUp listens to Shopify webhooks in the background - no polling, no slowdown.3. Alerts appear in your dashboard with a direct Fix now link to the affected product or discount.Why merchants choose GuardUp- Real-time webhook detection - alerts fire within seconds- Safety Score dashboard showing your current risk exposure at a glance- One-click deep links to fix issues directly in Shopify admin- No storefront code - zero impact on page speed or Core Web Vitals- GDPR-compliant, built with Polaris and App BridgeBuilt for Shopify - Polaris UI, App Bridge, native billing, GDPR-compliant.