Kits, bundles and bills of materials get used interchangeably in conversation and behave differently in practice. A kit is picked at fulfilment from components that are usually also sold separately. A bundle is often a pricing construct on the storefront with no ERP object behind it. A bill of materials belongs to manufacturing, where the components are consumed to make something new.
The practical difference is what the number on the page means. For a kit, the available quantity is the smallest number of complete sets the components allow, recalculated whenever any component moves. Most connectors do not calculate that, so kits either carry a static stock number that is wrong or get hidden from the site.
Acumatica distinguishes stock kits from non-stock kits, and the two sync differently. Before agreeing that a platform supports kits, establish which kind you sell and what quantity the storefront will display for them.
Why it decides a platform
Kit availability is the most common silent data error in an ERP to storefront sync. The kit shows a plausible number, nobody questions it, and the shortfall only appears in the warehouse.
Also called: bundle, kitting, kit vs bundle, product bundle, stock kit, non-stock kit.
Last updated 2026-08-20.