Stocky, Shopify's own inventory and PO tool, shuts down August 31 with no export for suppliers or reorder points. RestockSimple is the replacement: import your data from a CSV in minutes, then track stock, get low-stock flags, and create/receive purchase orders, all inside your Shopify admin. Free to start. Built for small merchants who just need restocking to work, without the complexity or price tag of enterprise inventory platforms.