Hi Ram,
Assuming IDoc has successfully reached RFC layer in ECC and was transmitted and accepted by PO successfully, you may not be able to see it in IDoc Monitor of PO (even immediately after processing) in case IDocs are not persisted in the Advanced Adapter Engine of the PO system. Please check value of the property Persistance of Java Resource Adapter JavaIdocAdapter (this can be done in NWA) - if the property has value false, IDocs will not be persisted in PO even if they reached PO and were processed. In this case, you may either enable persistence of IDocs (keep in mind drawbacks of enabled IDoc persistence) or search for respective XI message that was generated out of the received IDoc in Message Monitor of PO.
Regards,
Vadim
