Problem with IDOC TO FILE Scenario

Hi Experts,

I am doing IDOC TO FILE Scenario.

I have done all the configuration.I have cretaed RFC,PORT,LS and Partner profile at both R/3 and

XI Side.

when I am trying to generate IDOC using we19 and I put the r/3 port,partner in sender and XI

port and partner in receiver it gives me error as "Port 'SAPCU6_100' does not exist in the table

of port descriptions.

Please help me.....

Regards