First post here and new to Jira automation. A previous support request is very similar to my situation, but it doesn't work for me:
https://community.atlassian.com/t5/Jira-questions/How-to-sum-a-custom-field-value-from-child-issues-to-epic-parent/qaq-p/2201696
I also have multiple issues that are children of an Epic. The Epic contains a field that should be based on the sum of values derived from those child tasks. The rule is triggered manually from the Epic. It works if I put a static value in the code. The rule is completing with no error.
This code is adapted from the case referred to above. But for me it just sets the target field to "None" when I run it.
{
"fields": {
"customfield_10201": "{{lookupIssues.customfield_10200.sum}}"
}
}
If I swap out "{{lookupIssues.customfield_10200.sum}}" for a static number it works fine. Evidently I have neglected or misunderstood something important about the context.
