Restriction for Material Component deletion after PO creation in PS
I want to restrict the material component deletion from the Projects once the PO is created for it. I have done the required configuration settings in OPSG (Change Profile Order Change management) where the system must give an error for material component deletion once the PO is created for it. But still it is not working.
1) Why the configuration in OPSG is not working?
2) Is it required to use user exit CNEX0009 or CNEX0039?
3) Where can I locate uset exit CNEX0039 if required?
Can anyone help on this issue!!!!