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

[Toomas Adson]

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

[Bill Sheboy]

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:

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