Thanks for the response...
Can you help me out for the reverse scenario i.e.if I have 50 nos of POs and i want to find its related Outbound IDOC at a time.Although we can make it through ME23N-->>Message--->>Processing log.But this action is only for individual PO.
Is there any standard SAP functionality IDOC nos found from its related POs at a time.Thanks in advance..