yes I have been using QBO Online from 2013 . I do have over 1000 items and already we are using item codes description and do all the invoicing and do stock take . But in cosmetic business our staff make so many human errors when entering item codes and selecting them . 

Always this has caused stock inventory discrepancies either we have more stocks in some items and less stocks in another items . 

I belive only solution is to develop QBO develop team a qbo barcode scanning system to QBO Online .