Populate task time according to his subtask's

[Alon Goakil]

Hey all 

I am creating a high level task for my team and I want them to create subtask's with start date and end date 

The goal is that the parent task will take the earliest date (from start date) and latest date (from end date) 

Also it will be great if it could be the same for epic and tasks as well 

Do you think that it is possible? 
Thanks 

[Trudy Claspill]

You could do that using the Automation for Jira feature.

You would set the rule to trigger when either the Start Date or End Date of a sub-task changes. Then add a branch to find the sub-task's parent issue and update the parent issue fields based on the sub-task.

You could create a similar rule that would trigger on changes to an issue's Start Date or End Date, then branch to find the issue's parent Epic and update the Epic fields.

Refer to this documentation: https://support.atlassian.com/jira-software-cloud/docs/automate-your-jira-cloud-processes-and-workflows/

And you can find multiple posts about how to construct such rules if you search for something like "update Epic dates based on child issues"