Back-in-Stock Notifications in Shopify Mobile Apps: The High-Converting Alert (2026) Last updated: May 2026 | Reading time: 7 minutes Back-in-stock notifications are among the highest-converting push notifications a Shopify brand can send. A customer who registered for restock alerts and receives a push when that product becomes available converts at 3-5 times the rate of a standard promotional notification recipient. Why back-in-stock notifications convert exceptionally well Demonstrated intent. A customer who signed up for a back-in-stock alert has demonstrated unmistakable purchase intent. This is the highest-intent signal available — higher than wishlist addition, higher than repeat product page visits. Time-sensitive availability. The notification has implicit urgency: the item is available now, but may sell out again. Zero acquisition cost. The customer is already in your opted-in notification list. ROI is essentially infinite at small scale.…