Automation: how to copy the last comment of an issue to a custom field in JIRA?

[Giorgio Crosali]

As the title suggests, I'm struggling to create the proper JSON script and I'm not allowed to use plugins

[Bill Sheboy · Accepted solution]

Hi @Giorgio Crosali 

You could use the built-in automation for Jira rules for this, such as:

• trigger: issue commented
• action: edit issue for your custom field, setting it to the last comment's body, or other contents.

Please look here for information about automation to get you started:

• https://www.atlassian.com/software/jira/guides/expand-jira/automation
• https://community.atlassian.com/t5/Automation-articles/Jira-Automation-all-the-resources-you-need-in-one-page/ba-p/1388465
• https://www.atlassian.com/software/jira/automation-template-library#/label/all/1453

Best regards,
Bill

[Alex]

Hey @Giorgio Crosali 

Following @Bill Sheboy answer, I can share an example:

Cheers,

Alex

[Giorgio Crosali]

thanks to you both @Alex and @Bill Sheboy - I've managed to get the expected result

[Stephanie Kohne]

Hi @Alex 

After much digging and diving, your solution to this automation works perfectly for me, however how do I exclude Internal comments from being populated in my custom field "last comment" 

This is as far as I have gotten:

[Stephanie Kohne]

I got it to work!

[David T Jones]

One other suggestion, you can run a scheduled rule to update all unresolved issues if you want to backtrack the change and update all the open tickets to have last comment populated. 

Also, if you want to make it a short text field you can insert .left(255) in the value to truncate it if you don't want the last comment field to end up being huge

{{issue.comments.last.body.left(255)}}

[Emilia KASPRZYK]

Guys, i love you, thx works prefectly ;)