Item Assembly

Item Assembly allows you create inventory items out of other inventory items that your company stocks. To create an item, you open the Item Assembly window, select the component parts and then select the item that will be assembled. Because an assembled item's component parts are not defined anywhere in Sage 50 Accounting, you must define the components every time you assemble an item. Item Assembly is best suited to impromptu assemblies of items that you normally order from a vendor, or packages that you periodically put together that may not always have the same contents (for example, gift baskets).

Advantages of Item Assembly 

If your company frequently builds inventory items out of other inventory items and you want to track the associated costs, building them from a Bill of Materials will provide more accurate reporting and makes recording the build much faster. (Sage 50 Premium Accounting)