Find the minimum value of a field using the function MIN in JIRA Automation

Question

Hi,

Good morning! I would like to use the function MIN in JIRA automation to find the minimum value of a field, between all the child issues of a parent issue.

Then I would like to use the function's result to update a field of the parent issue.

Is this possible to achieve?

I will appreciate any help

Thank you in advance!

Nic Brough -Adaptavist- · Accepted Answer

Welcome to the Atlassian Community!

The "min" function needs you to give it a list of values to compare, so what you need to do is something like:

a = min ({{issue-1.numberfield}}, {{issue-2.numberfield}}, {{issue-3.numberfield}}, {{issue-4.numberfield}}, etc)

Bill Sheboy · Accepted Answer

Hi @Mario Palacios Fernández

Yes, that is possible, and...what do you mean by child issues?

If you mean the subtasks of a parent issue, they are already in a list in the parent, and so min can be used directly on that list:

If instead you mean another parent/child relationship, like epics and other issues, please use JQL to gather the issues into a Lookup Issues result, and then use min:

The long-form of min() you showed is helpful for arbitrary lists of things in a math expression in a rule.

Kind regards,
Bill