We have created a release strategy for POs.
Every PO that is created is in block state and only a specific user can release it.
The think that we can not do (and for that we want your help) is that if a change is made to the PO after it has been released we would like to be blocked automatically again.
We searched for User exits that will be triggered on save but with no luck. For example in the FM "EXIT_SAPMM06E_012" in the include "ZXM06U43" we inserted a breakpoint in ABAP code but when we save the PO it doesn't stop in breakpoint.
We have read about a BAPI "ME_PROCESS_PO_CUST" but we don't know what to do with that. Where can we put our code?
Can someone help us?