The ability to track inventory serialized items in an assembly. As you build the assembly you link the individualized serialized item to each assembly so when the item is posted to the invoice it allows you to link each serialized item to the customer and they are pulled individually from stock.
With electronics parts there are packages that range from 3 – 8 serial numbers per package. They are bought as groups but then often get split as they are integrated within larger systems. Trying to use two features in tandem. Assembly and serialized parts are both great features but they don’t work together.