Back-in-stock alerts, notify-me forms, and turning sold-out demand into sales on Shopify.
A practical guide to adding back-in-stock alerts to your Shopify store: capture demand on sold-out products, trigger emails automatically the moment you restock, and use the waitlist to decide what to reorder.
The two ways Shopify back-in-stock apps charge, flat monthly vs per-notification, with the real 2026 prices from four apps and the point where each model stops being the cheaper one.
Seven things worth checking before you install a back-in-stock app on Shopify: per-variant capture, automatic triggering, multi-location stock, delivery visibility, data ownership, and how the pricing behaves on your biggest restock.