Guide
How to avoid stockouts on Shopify
Five habits that keep best-sellers in stock — across DTC, Amazon, and wholesale.
In short: To avoid stockouts on Shopify: forecast demand per SKU, set a weeks-on-hand target that covers your lead time, monitor coverage per fulfillment location, plan replenishment against lead times and MOQs, and account for Amazon and wholesale demand that shares the same stock. SpyGlass automates all five.
The five habits
- Forecast per SKU from real sales velocity, not a catalog average.
- Set a weeks-on-hand target that covers replenishment lead time plus safety stock.
- Watch coverage per location — a single on-hand number hides an FC about to run dry.
- Plan replenishment to lead times and MOQs so reorders land before you hit zero.
- Account for every channel — Amazon and wholesale pull from the same stock as DTC.
Automate it
Doing this by hand across dozens of SKUs, several locations, and three channels is where spreadsheets fail. SpyGlass runs all five continuously and alerts you before a stockout — turning weekly planning into a few minutes. Inventory planning for Shopify brands →
Frequently asked questions
How do I stop stocking out on Shopify?
Forecast per-SKU demand, set weeks-on-hand targets, monitor coverage per location, plan replenishment to lead times and MOQs, and account for every channel that shares your inventory. SpyGlass automates and alerts on all of it.
Why do I stock out even when total inventory looks fine?
Because coverage is a per-location, per-channel problem — one FC or channel can run dry while the network total looks healthy.
Can Shopify prevent stockouts on its own?
Shopify reports what sold; it doesn't forecast demand or plan multi-location replenishment. You need planning on top, which is what SpyGlass provides.
See your stockouts and dead stock before they cost you
Book a 30-minute call. We'll map your channels, FCs, and SKUs live and show where cash is trapped and where you're about to run out.
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