3 plugins tagged with partial-shipment
Ship WooCommerce orders in parts: record shipped quantities per item, update the order status automatically and show customers what has shipped.
Backorder split for WooCommerce. Out of stock items move to their own order, so you ship the rest today. Partial shipment, shipping paid once.
Split WooCommerce orders, ship what's in stock now, and handle backorders and items you can't supply — with totals, taxes and stock kept right.