A shipment order and its lines can be cancelled when the the order is not valid anymore but when it's still important to keep the record, as opposed to deleting it. The option to delete is only available in status Planned while cancel can be done later in the process as well.
You may cancel the line when the line status is:
You may cancel the whole order when:
When using the cancel command on either order or line, a dialog appears where cancellation reason can be entered. If one or several shipments are connected, they will appear as information in the dialog.
Any reservations done or shipments connected will be unreserved and disconnected.
The status will change to Cancelled.
The field Cancellation Reason will appear on the order header. The field is also available on the line. This is the only editable field in status Cancelled.