The BU requirement is for people exporting to QuickBooks as class is
required. If you don't want to attribute it to any specific BU, I use a
catch all BU (HVAC office) that I will dump stuff like this into.
I would create a report for invoice items, filtered by the day(s) you
want to pull for, filter to materials/equipment, or just inventory items
if that's what you're looking for. Otherwise you could look into using
requisitions.