Unbuilding Assemblies and Purchased Assembly Costing
If you use the Allow Purchase of Assembly Items preference, the following paragraph explains how NetSuite handles costing for assemblies you unbuild. For information about manufacturing preferences, see Manufacturing Preferences Overview.
When unbuilding an assembly item, NetSuite uses historical costing to determine member item values. For example, a member item's historical transactions display a cost of $25. NetSuite uses this amount to calculate cost for the member item after the assembly unbuild.
If the assembly being unbuilt was purchased from a vendor, a member item has no previous transactions. The historical cost to be considered is $0 and member items in this case would have a value of $0.
If you want to adjust your inventory prior to an unbuild or rather than unbuilding an assembly, refer to the following procedures: