compare task/ story end dates with related epic end date

[Sam]

I am trying to compare task/story end dates with the related epic end date.

Conditions: for issue update for task or story

1. If epic end date is greater than the related task/story end dates its should send notification to certain group2. 
2. If epic end date is less than the related any of the task/story end dates its should send notification to certain group2 and change status to block condtion

[Ilya Stekolnikov]

you can use scriptrunner Escalation Job for this.

find issue for your JQL, then add script, then make cron expression