Fortimail alert message using Fortianalyzer event handler

I'm trying to get alert mail for configuration changes on fortimail using fortianalyzer 6.4.2 

i'm recieving the event log successfuly on the fortianalyer with message indicating the 

configuration changes 

i configured the event handler and recieved alert mail but message conatins that configuration 

modified with no details 

so how can i get the full message on mail as event log