For your unsold quantities, you have the option to raise a return authorisation directly from the relevant Delivery Note.
On the Products Tab, you can dictate the UNSOLD quantities you expect to receive back from the consignment store
Once the quantities are returned and received, click 'Received Quantities'/'Received Quantities & Back to Stock' - Click [Save]
Inventory users will have the Back to Stock option, standard clients will not.
When quantities are entered as received, these will be removed from the consignment column in your Product Stock Inventory.