The "Sales order handling" settings of the VAPS
The following settings can be made in the "Sales order handling" area of the "Setup" dialog:

Decide whether you want to
-
keep reservations when production order due dates get shifted
- show the sales order number on the production order line
- automatically update the due date of a connected production order when sales order dates (Planned Delivery Date, Planned Shipment Date, Shipment Date) are postponed.