Kitting/De-kitting:

 

Kitting is the process of combining two or more individual items/SKUs into a one new item for shipping, with the kitted package often receiving its own SKU number. A WMS should be able to manage the kitting process while maintaining visibility into the component SKUs of the kit. De-kitting Is the reverse process, returning kitted SKUs into individual items, often needed when kits are returned, or more kits were created than were actually needed.