How to Use Portal Eventing for Web Dynpro iViews
To use portal eventing you have to define which Web Dynpro action is used as the event handler for the portal event. You can fire any portal event. Note that portal eventing only works properly if all participants (i.e. the portal server itself and all the servers used) are in the same domain. Otherwise portal eventing does not work. If the SAP J2EE Engine on which the Web Dynpro application is deployed is in another domain, you have to edit the configuration file hosts and map the IP address of the SAP J2EE Engine to the domain name of the SAP J2EE Engine on which the SAP Enterprise Portal is running.