Engineer to Order (ETO) produces a Manufacturing Estimation (ME), which is the estimated cost to produce an item to a customer’s specifications. The ME is comprised of an Estimation BOM, Routing and list of Miscellaneous Costs. A tight integration to GP Manufacturing allows the ETO module to begin an estimate by importing an existing GP Manufacturing BOM and Routing, and when the ME is accepted, the ETO module transfers the ME BOM and Routing into GP Manufacturing, and creates new part numbers as needed. If the ME is linked to a Sales Quote Line, Accepting the ME can also update the Cost and Price on the sales line and change the item from a non-inventory item to a Sales Inventory item.