Budget estimation - sum up custom field of child tasks of epic

Question

Hi

I am solving the budget estimation request. Epic task has several subtasks with numeric custom field. My aim is to sum from all child tasks the custom field  to a epic  -and do it each time if value is changed in child task.

I have seen automation examples with time tracking fields - can same approach be used with custom field?

Thanks for hints and advises

John Funk · Answer

Dang, what a great article!!!   :-)

Bill Sheboy · Answer

Hi @Toomas Adson

Yes, that sounds correct, and...because this is a custom field for Jira Data Center and you likely want to update the parent Epic, the REST API must be used.  Please see this post for more details in this great article from John Funk:

https://community.atlassian.com/t5/Jira-articles/How-Can-I-Sum-Up-Multiple-Issues-into-a-Parent-Number-Field/bc-p/2883071#M16701

If you only need to report on the sum (e.g., in an email) the issue bulk-handling feature may be used.  That is covered in the same linked post.

Kind regards,
Bill