Solution : https://service.sap.com/sap/support/notes/11661 (SAP Service marketplace login required)
Summary : Key words : Related Notes :
The issue addressed concerns the inability to trigger background jobs using an OS event. The cause could be improper sapevt invocation, undefined events in R/3, unmaintained profiles, or the unreachable message server. The solution involves using the sapevt program located in /usr/sap/
located indirectory /usr/sap/<sid>/sys/exe/run, sapevt <eventid> pf=<profile> orsapevt <eventid>, reached solution background jobs triggered, additional key words sapevt, writes trace file 'dev_evt', profile parameters rdisp/mshost, =<sid> nr=<instance>, long event names, operating system event, event-driven job
449270 Job RDDIMPDP is not triggered by sapevt