How to copy custom field value from child issue A to child issue B

Loic_9eb2s6

Hi,

The parent issue have 2 child issues (A and . I would like to copy some custom fields value from child A to child B. The trigger will be either Form Summited or Issue transitioned. Some value will be copied when a form will be submitted in Child issue A and other when the status change in child issue A.

I'm very new to JIRA and to programming. So if the answer involves JQL or JSON, please give detailed instructions.

Thanks for your help

Trudy P Claspill

Hello @Loic 

Welcome to the Atlassian community.

Are the child issues in the same project as each other and the same project as their parent issue?

What is your level of access to the project? Are you assigned to the Administrator role in the project?

Do you have any experience with the Jira Automation feature? The documentation is found here:

https://support.atlassian.com/cloud-automation/docs/jira-cloud-automation/

Jira Product Administrators can create Automation Rules. They may also configure Jira to allow non-Jira Product Admins to create Automation Rules that operate against a single project. If you have access to do that, then you would find the feature by selecting Project Settings > Automation.

If you have been working on Automation Rules for this task, please provide screen images showing us what you have so far, and tell us at what point you are stuck.