Low stock is a count. Days of cover is a clock.

Two files: a product export with stock, and an orders export with SKU, date, status, and quantity. We divide on-hand by paid units per day in the lookback window. SKUs with no paid sale in the window belong on dead stock, not here. The files stay in this tab.

1. Products CSV (Stock, Variant Inventory Qty, or On hand)
Choose products CSV No file chosen

2. Orders CSV (SKU, date, status, quantity)
Choose orders CSV No file chosen

Look back days Flag if cover ≤ days

Or paste products from Google Sheets / Excel. Nothing is uploaded.

Or paste orders (SKU, date, status, quantity).

Paid = WooCommerce completed / processing / on-hold, or Shopify paid / partially_paid. We do not invent a purchase-order quantity. Variable parents and unpublished rows are skipped.

SKU	Name	Stock	Sold	Days of cover	Issue

What this is not

Not a forecast model. Linear velocity from paid units only.
Not trapped-dollar math. We do not invent cost without a cost column.
Not a missing-image catalog check. That is csv-check.html.