The product
Inventory Alerts is a Shopify app that watches per-variant stock levels across multiple locations and sends branded email notifications via Resend when thresholds are crossed. It uses an alert state machine (ok, low, critical, out of stock) with debouncing, so the same level is not emailed twice.
Includes per-alert error isolation (a failure in one alert doesn't block others), complete audit trail with delivery status, and webhook-driven instant re-evaluation when inventory levels change.

