Thanks Stacey, I think it will work. Let me give it a try again.

Kindly find the below alarm group. I have acknowledged the main alarm but the rest of alarms under this group is not acknowledged. So I need to get the report of alarms which are grouped and not acknowledged....

Thanks for the suggestion guys. It helped me to understand. Now I have created a script to fetch the alarm data and send an email. But I need to pass the [alarmId] placeholder in correlation rule to trigger...