Overview:

This article explains how to put the custom field values of a parent in summary of created subtask

Instructions

Follow the below steps to put the custom field values of a parent in summary of created subtask

1. Log into Jira system as a Jira Administrator and click  > Issues  > Fields (under Custom fields). 
2. Navigate to the intended custom field and click the> Configure. You will be able to see the custom field ID in the address bar as shown in the following screen.
3. Go to the respective project and click on the desired workflow as shown below

       3. Select a transition which has the post function with the custom field values.

       4. Click the Post functions tab.

       5.  Click the pencil icon.