The kit builder should not default to booking stock into UNASSIGNED. Either allow us to select a location when we define the kit (we have to specify warehouse so why not location) or when you hit complete kit, select a destination for the stock at this point.
I've been told to use default locations but due to the nature of how fast our stock moves, this isn't practical.
It seems that the system uses the last used location for the product, but this is by-no-means good enough. System users should be able to specify a destination, perhaps for QC reasons if nothing else.