This section is relevant only if you want to use CAF applications that are created with SAP NetWeaver 7.1 Composition Environment, with a version older than Enhancement Package 1. There is a difference in the configuration of the destinations for such applications that you have to perform to be able to use these applications. In order to execute an external service at runtime, you must configure the Web service or RFC destination where the service implementation resides and map it to the external service definition in CAF.
You can test your external service in the Service Browser.