no conversation found with id xxxxxxxx

[Former Member]

Hi,

I use currently the SAP NCo 3.0.6.0 and  a customer is getting the weird message "ERROR       no conversation found with id xxxxxxxx". I tried several things to configrue, asked google, but nothing could resolve my problem. Does anybody of you know how I can fix this issue or give a hint on what went wrong there? With other customers this problem doesn't occur, so it must be some specials inside SAP.

Stacktrace:

SAP.Middleware.Connector.RfcCommunicationException:
ERROR       no conversation found with id 54864021
TIME        Fri Sep 14 13:43:06 2012
RELEASE     720
COMPONENT   CPIC (TCP/IP) with Unicode
VERSION     3
RC          473
MODULE      r3cpic.c
LINE        9119
COUNTER     1
   at SAP.Middleware.Connector.CpicConnection.CpicSend()
   at SAP.Middleware.Connector.CpicConnection.WriteFlush()
   at SAP.Middleware.Connector.RfcConnection.WriteRfcCallEnd()
   at SAP.Middleware.Connector.RfcFunction.RfcSerialize(RfcConnection conn, IRfcIOStream stream, RFCID rid)
   at SAP.Middleware.Connector.RfcFunction.RfcCallReceive(RfcConnection conn, IRfcIOStream stream, RFCID rid)
   at SAP.Middleware.Connector.RfcFunction.Invoke(RfcDestination destination)

Thanks for your help.

Regards

[Former Member · Accepted solution]

At a deeper analysis with ST22 at customer side, we found out that the RFC user had no authorization for function group SYSU.

The error message is in addition not really helpful.

Thanks if you invested work into this issue.