After you create a new BOM, you can calculate its unit cost. The unit cost of a BOM always equals the total of the unit costs of its component items. The Unit Cost field on the item cards must be filled in so that the unit cost of the BOM is calculated correctly.
Open the Item Card window and then browse to the card for the new BOM that you have created.
Click Item, Assembly List, Calc. Standard Cost.
The program copies the costs of the items that comprise the BOM. The cost of each item is multiplied by the quantity, and the total cost is inserted in the Standard Cost field. If the Costing Method is Standard, the Unit Cost field is also updated.
Unit Cost Calculation