Reorders from arithmetic, not anxiety.

Stock that hasn’t reached Amazon is only ever counted if you declared it. RestockIQ is explicit about what it tracks for you — stock at Amazon, shipments in transit to Amazon — and what you tell it: your warehouse, your own inbound. Invented stock causes stock-outs; so nothing is invented.

Timing matters too: units in transit are credited on their projected arrival day, not the day the shipment was created — so a container that lands in three weeks doesn’t falsely cover next week’s sales.

Demand comes from your own sales history, shaped by recurring seasonal curves per category and marketplace — and the seasonal effect is removed from the variance before safety stock is computed, so the season isn’t counted twice.

For slow movers, textbook normal-distribution safety stock is badly wrong. RestockIQ uses discrete count models — Poisson, or negative binomial when sales are lumpy — so a two-a-week product is protected like a two-a-week product.

You choose the service level; RestockIQ shows the assumption instead of hiding it.

The reorder point covers supplier lead time plus Amazon inbound transit time — because stock in your warehouse isn’t sellable stock yet.