Hi Naga,
I think you can debug at following methods to analyze further.
Class Interface CL_CRM_IC_ABAP_ALERT
Method IF_CRM_IC_ALERT_SERVICE~SEND_ALERT_MESSAGE
Method RAISE_ALERT_EVENT
Method IF_CRM_IC_ALERT_SERVICE~INITIALIZE
Class Interface CL_CRM_SMF_SERVICE_MANAGER
METHOD EXECUTE
Best Regards,
Bruce