Jira Automation Sum up story points when the field value changes not working

[kevin shine]

I have followed the examples almost exactly but the sum is not working.

I can see the rule fires, and the parent story points gets updated to 0. 

[Trudy Claspill · Accepted solution]

Hello @kevin shine 

Refer to the comments in this issue

https://jira.atlassian.com/browse/JSWCLOUD-20605

Specifically look at the comment on 12 Aug 2020

Here is the rule you need. The Log Action components are not required.

Here are the details of the Lookup Issues and Edit actions

[kevin shine]

Brilliant thanks that worked.

[Trudy Claspill]

Glad I could help.

If you problem has been solved, please mark the response as Answer Accepted to help other community members find the posts that include solutions.

[kevin shine]

I suspect this has something to do with Epic Parent and subtasks not being found in the string  {{issue.subtasks.Story Points.sum}}. 

The stories are child issues of the Epic but maybe not specifically subtasks. I am trying to sum the child stories.