RfcDestination SapRfcDestination = RfcDestinationManager.GetDestination("WDA");
                RfcRepository SapRfcRepository = SapRfcDestination.Repository;
                IRfcFunction BapiSalesOrder = SapRfcRepository.CreateFunction("BAPI_SALESORDER_CREATEFROMDAT2");
                
                IRfcTable ORDER_PARTNERS = BapiSalesOrder.GetTable("ORDER_PARTNERS");
                ORDER_PARTNERS.Append();
                ORDER_PARTNERS.SetValue("PARTN_ROLE", "WE");
                ORDER_PARTNERS.SetValue("PARTN_NUMB", "0060125914");
                ORDER_PARTNERS.Append();
                ORDER_PARTNERS.SetValue("PARTN_ROLE", "AG");
                ORDER_PARTNERS.SetValue("PARTN_NUMB", "0060125914");
                
                IRfcStructure order_header_inx = BapiSalesOrder.GetStructure("ORDER_HEADER_INX");
                order_header_inx.SetValue("UPDATEFLAG", "I");
                order_header_inx.SetValue("DOC_TYPE", "X");
                order_header_inx.SetValue("SALES_ORG", "X");
                order_header_inx.SetValue("DISTR_CHAN", "X");
                order_header_inx.SetValue("DIVISION", "X");
                
                IRfcStructure order_header_in = BapiSalesOrder.GetStructure("ORDER_HEADER_IN");
                order_header_in.SetValue("DOC_TYPE", "TA");
                order_header_in.SetValue("SALES_ORG", "12"); 
                order_header_in.SetValue("DISTR_CHAN", "00"); 
                order_header_in.SetValue("DIVISION", "00"); 
                
                IRfcTable ORDER_ITEMS_INX = BapiSalesOrder.GetTable("ORDER_ITEMS_INX");
                IRfcTable ORDER_ITEMS_IN = BapiSalesOrder.GetTable("ORDER_ITEMS_IN");

                ORDER_ITEMS_INX.Append();
                ORDER_ITEMS_IN.Append();
                ORDER_ITEMS_INX.SetValue("UPDATEFLAG", "I");
                ORDER_ITEMS_INX.SetValue("ITM_NUMBER", "000010");
                ORDER_ITEMS_IN.SetValue("ITM_NUMBER", "000010");
                ORDER_ITEMS_INX.SetValue("MATERIAL", "X");
                ORDER_ITEMS_IN.SetValue("MATERIAL", "000000000041000423");
                ORDER_ITEMS_INX.SetValue("TARGET_QTY", "X");
                ORDER_ITEMS_IN.SetValue("TARGET_QTY", "2");
                ORDER_ITEMS_INX.SetValue("PLANT", "X");
                ORDER_ITEMS_IN.SetValue("PLANT", "1201");

                IRfcFunction CommitFunction = SapRfcRepository.CreateFunction("BAPI_TRANSACTION_COMMIT");
                RfcSessionManager.BeginContext(SapRfcDestination);
                BapiSalesOrder.Invoke(SapRfcDestination);
                CommitFunction.Invoke(SapRfcDestination);
                RfcSessionManager.EndContext(SapRfcDestination);

                IRfcTable res = BapiSalesOrder.GetTable("RETURN");
                for (int i = 0; i < res.Count; i++)
                {
                    listBox1.Items.Add(res[i].GetString("MESSAGE"));
                }