Kelso: Back in Stock Alerts

by Kelso
Free plan available. Free trial available.

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by Kelso
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on
Free plan available. Free trial available.

Send automatic restock alerts to waiting customers. Dual detection system and full delivery logs ensure every email reaches its destination.

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About the Kelso: Back in Stock Alerts

Out-of-stock products don't have to mean lost sales. Kelso adds a "Notify me when available" form to your product pages, then automatically sends restock alerts to waiting customers when items are back in stock. The app is built for reliability with two detection paths: an inventory webhook plus a reconciliation poll as backup. Every restock alert is tracked in a full send log, recording each step from queued to delivered. Kelso works across your entire catalog and subscriber list. You get complete control over your waitlist with one-click export and delete options. Switching from another back in stock app? Import your existing waitlist via CSV with one click. Customers simply request alerts through the storefront widget, and you'll capture every restock notification opportunity.

Launched: July 7, 2026