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How to retrieve the value of a custom field from a child issue in the parent issue in rules?

Maéva_bvswzd

Hello everyone,

I am new to Jira and I would like to create a simple rule that allows me to retrieve the value of a custom child field (here, story) in the audit log via the parent (epic).

First, I created a manual trigger on the epic and then used the "THEN" action to "add a value to the audit log." For the value, I tried many things like: {{issue.Story Ponderation}} or {{issue.child Ponderation}} etc.

I have gone through the documentation, but every time the value in the log is empty.

Do you know the correct formulation to retrieve the value of the child via the parent trigger in the audit log?

Thank you for your responses.

Accepted answers

Manon Soubies-Camy

Hi @Maéva and welcome to Community!

You can use branches to retrieve values from children:

Here's what I got in the audit log:

Hope this helps!

- Manon

Tuncay Senturk _Snapbytes_

Hi @Maéva

In order to retrieve the value of a custom field from the child issues, you need to use the lookup Issues action. First add an action lookup issues action with the JQL below

"Epic Link" = {{issue.key}}

then add log action with the smart value as something like below

{{#lookupIssues}}{{Story Ponderation}}{{^last}}, {{/}}{{/}}

or you can use customfieldId directly

All comments

Manon Soubies-Camy

Hi @Maéva and welcome to Community!

You can use branches to retrieve values from children:

Here's what I got in the audit log:

Hope this helps!

- Manon

Tuncay Senturk _Snapbytes_

Hi @Maéva

In order to retrieve the value of a custom field from the child issues, you need to use the lookup Issues action. First add an action lookup issues action with the JQL below

"Epic Link" = {{issue.key}}

then add log action with the smart value as something like below

{{#lookupIssues}}{{Story Ponderation}}{{^last}}, {{/}}{{/}}

or you can use customfieldId directly

Maéva_bvswzd

Hi @Tuncay Senturk
Thank you for your response.
I tried what you suggested, but unfortunately, it didn’t work. I think the link between my epic and its story is not an epic link.
I’ll dig a bit deeper to see how this method can work.

Thanks again for your help.

Maéva_bvswzd

Hi @Manon Soubies-Camy
Thank you for your response.

I tried adding the branch for the children, and it works very well.
Thank you so much for your help

Maéva_bvswzd

Hi @Manon Soubies-Camy

I have another question to ask you.
Through this test, I wanted to retrieve the value of my custom field from the story and integrate it into the custom field of my epic.
I simply added a "THEN" action to "edit the issue," selecting the name of my custom field in the epic, but unfortunately, the value doesn’t appear. Yet, the value I entered is the same as in the log, so it should return 2.
Do you have any idea why this might be?
Capture d’écran 2025-01-24 153541.png

Thank you in advance.

Manon Soubies-Camy

Hi @Maéva,

What’s the use case for this rule? It could get tricky if there are multiple child issues.

Based on your screenshot, it looks like you’re editing the child issue, not the parent. Since the ‘Edit issue’ action is inside the branch, it only applies to the child issue.

Depending on your use case, you could try something like this:

This would automatically copy the value from the child to the parent issue.

Hope this helps!

- Manon

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