Use
You can change the requirement (or required) quantity of an item at any time.
You can change the quantity on the collective processing screen or on the detail screen. On the detail screen, the required quantity (in the stockkeeping unit) and the quantity withdrawn to-date are also displayed.
If you change the quantity for a reservation item and do not reset the "final issue" indicator, this item will be suggested as deselected when you enter the goods movement (see