I meet bellowed issue.
I book sales order: A material 100 qty, but there is only 60 qty in stock, so confirmed qty is 60. When I create delivery notes, the A material stock is over 100, So Delivery qty can be changed manally to 100, then the delivery note is posted goods issue. because I don't reschedule sales order, so the confirmed qty is still 60. So the system display delivered qty > confirmed qty. Actually I don't want to see such result, because it make user confuse. Can I control that delivered qty isn't more than confirmed qty? that is, When I change deliveried qty in delivery notes, it give a error message?