Kitstock: Bundle Inventory

Kitstock keeps a bundle's stock at what its parts make, at every location. Your bundle stays an ordinary product with its own SKU, images and channels; you pick its parts and how many of each it takes. Before anything changes, each bundle shows what starting would set. From then on a bundle sold, refunded or restocked moves its parts, and a part that moves sets every bundle using it, so a bundle and its parts sold at once both come off. Every change is logged, and syncing can be paused.