Hi,
As you said
once the final entry is done its clear off the open commitment items.
I agree with final entry your qunatity will be redured/short closed but what about the value part at service line item level? Short close will be applicable for PO line item value/qunatity but for service line item you have to manually change the qunatity/ value. There is no way out in SAP which will automatically reduce the amount in contract. You have to manually reduce the amount in PO.
Hope, i have cleared your doubts.
Regards,
Priti.