how to enable Change Management for Cisco equipments?

Hi we bought device expert professional edition.I'm trying switch on change management.
At my cisco ASA firewall I did following:
logging host inside 172.16.63.144 <---- here situated device expert and its syslog
logging asdm notifications
logging trap notifications
At device expert server I added new device, enabled Syslog Change Detection, created rule and associated it to this device

When I configure my equipment I unable get change notifications automatically.
Only one chance get notifications is manually

refresh change detection through syslog.

Could you show me where is misconfiguration?

Thank you.