Planned Builds let you build items from components in steps, Planned and Completed.
Planned updates Quantity Allocated for the components and items on a Planned Build. Allocated settings include all subcomponents for multi-level built items, automatically. In turn, Quantity Needed is set for all Bought components making purchasing a snap.
Completed Builds update Quantity On Hand. When you turn on Planned Builds, any existing Builds appear as Completed. New Builds will give you the option of Planned.