Oops you’re right - I have only used the conversational RPC against a Natural RPC-server, where this is pretty straight forward.
I just revisited the natural documentation and as far as I can see:
- Use the natural statement OPEN CONVERSATION
which will bind your natural session to one single Java-RPC server.
- Issue the different calls to that update
- make sure the last call calls a mathod that does the COMMIT in the java env.
- Then use the CLOSE CONVERSATION stament in natural to release the Java-RPC-server instance.
Finn
PS Any of the experts who have actuall tried this please correct me 
#EntireX#webMethods#Mainframe-Integration