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PreorderOS ‑ Preorder Manager
Create preorders and backorders with quantity limits, selling dates, dispatch estimates, waitlists, Klaviyo events, and Slack or Teams alerts across your store.
5.00(1 reviews)· Free to install. Free trial available.· Launched Jul 2, 2026
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Create preorders and backorders with quantity limits, selling dates, dispatch estimates, waitlists, Klaviyo events, and Slack or Teams alerts across your store.
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Data last refreshed Oct 20, 2026. Source: Shopify App Store.