"XI demo examples must be configured before first use"

Trying to execute the "Checking Flight Seat Availability" (Proxy-to-Proxy Communication) in Client 105 but there seems to be a problem. A new SAP screen states "XI demo examples must be configured before first use, Read the documentation under Help - Application Help", and unfortunately there is no content in the Help either. I am 100% sure that the example have been properly configured according to the Configuration Guide but obviously I have missed something. The BSP application in the SAP system of the Integration Server (client 105) has been activated.