Prevent work order business close when there is open PO

Question

Hello,
in standard SAP, when the work order have open PO, i will get a warning when i perform business close.  However this is only a warning.  On the warning window, if i click "Complete" option, i still can proceed to close the work order.
This will cause me headache later if user somehow "accidently" click complete when they should now.
Is there a way to make this a Error insted of warning or anyway to prevent order business close when the order have open PO.  Basically all i want is to prevent the work order business close when there is open PO.
Thanks a million.

Answer 1

There are order where due to urgency, the work is carried out first.  In this case, order is created then work done.  The PO is created later.
When the PO is created, the cost is not shown as actual cost in order but rather its planned cost.  At this stage, someone can accidentally close the order even the PO is still open.  I understand that if there is cost in the order, CLSD is not possible until settlement is done.
There is a workaround with CO99 + note 687572 but i wanted to prevent CLSD thru IW32.
You can try this...
1. Create a work order with a non-stock item. this will create a PR
2. (if required) release the PR
3. create PO from the PR
Do not perform MIGO.
4. TECO the work order
5. perform business close from IW32.
At the warning window, click "Complete".  You will see the order is CLSD.