Requirements

• WordPress 6.5 or later (tested up to 7.1)
• WooCommerce 8.2 or later (tested up to 11.1), active; WordPress won't activate Supplyline without it
• PHP 7.4 or later

What it works with

• Simple products and variations. Each variation can have its own supplier, reorder point and other purchasing fields, or use its product's supplier. Variable products themselves aren't reordered, their variations are.
• Stock tracking. Only products and variations with Track stock quantity on show up to reorder, and only their stock changes when you receive a purchase order. You can still put other products on a purchase order.
• High-Performance Order Storage (HPOS) and the block-based cart and checkout. Supplyline reads orders through WooCommerce's own functions (for the Sold column) and declares itself compatible with both.
• Who can use it. Purchase orders and suppliers need the Edit products capability, which shop managers and administrators have. A role that can edit only its own products (no Edit others' products) sees other people's purchase orders in the list without their totals and can't open them, and only lists, orders and receives the products it can edit.

How it stores things

Suppliers and purchase orders are private WordPress posts (types supplyline_supplier and supplyline_po) with their details in post meta. The purchasing fields are product meta. There are no extra database tables, and nothing is sent outside your site.

The Sold and Days left columns read your recent orders and keep the result for an hour. Changing an order's status refreshes it.

Other plugins

• Gridline, Extendiment's bulk product editor: the purchasing fields are columns there too (hidden until you turn them on).
• Supplyline Pro, a separate paid add-on, adds emailing purchase orders, supplier currencies, landed costs, reorder points from sales, several suppliers per product and Stockpool pools.