Maybe, I am not sure :-) I thought a gateway is bidirectional. It can receive messages from the external system, adapt it to the internal ESB format, and delegate it to the configured action/service. But it is also capable of accepting internal messages from the ESB and forward them to the external system. Is this assumption wrong? If so, do I need to add some kind of "sender service" that sends messages to a CICS host and use a gateway only for receiving messages? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4029114#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...