Nordica Inventory

Know what to reorder, and why, by Variegata Nordica.

Low-stock alerts and forecasts for every product, free.
Every suggestion says why in plain words: “Sold 12 in 30 days, 3 left, supplier takes 14 days → order 13”.
Suppliers made from your products’ Vendor: nothing to type to start.
Purchase orders as PDF or CSV, or an email from your own mail app. The app never emails anyone.
Stock changes only when you press Received, and Undo takes it back off.

Install it from the Shopify App Store, then open it from Apps in your Shopify admin.