Problem calling SAP standard Bapi via Nco 2.0 with this specific customer.
I am having problem when calling BAPI_PO_RELEASE from VB.NET via NCo 2.0 whereas i can successfully release a PO with the same user and with the same parameter input values via SAPGui's SE37
However, when i call BAPI_PO_GETITEMSREL from VB.NET via NCo 2.0 with the same user there is no problem, i can get the returns. and of course i can do it via SAPGui's SE37.
The error i get via NCo 2.0 when calling BAPI_PO_RELEASE is :-
'SAP.Connector.RfcSystemException' occured in sap.connector.rfc.dll
Additional Information: "Screen output without connection to user"
So, what does the error mean? why does the error only happen when calling BAPI_PO_RELEASE? Is there anyway i can work around this issues and call it via NCo 2.0 normally? Does it have anything to do with authorization or other security concerns? Because i can do it with other SAP customer also via NCo 2.0...
please advise. Thanks!