In the customer supplied materials scenario, Haller Industries relies on the customer to provide materials purchasing for the product and verify that they meet their specifications. Unless requested by the customer, Haller does not do any quality inspection of materials and does not verify correct part numbers and counts prior to stocking.

This type of system is generally utilized when the customer has their own purchasing, and materials management departments. The components are ordered and delivered to the customer site, where they are counted and inspected then divided into a neat package called a "kit". The kit contains all the components individually labeled and packaged for the quantity of the build. Haller then assembles the product against the "kit".