Add components of the epic to the current issue

Use case

Add the components of the epic to the existing ones in the issue after adding an epic link to any issue.

Create a new rule and name it appropriately.

Providing a description will help you to identify what the rule does but this step is optional.

Add a Trigger → Field changed event

Choose the field Epic Link

Choose Any value

Next to the Issue Selector click on Add → Action → Update field

Choose your custom Components

Choose Value returned by parsed expression

Set the mode to Advanced text and enter the following Parser Expression

toString(append(toStringList(%{trigger.issue.components}), fieldValue(%{issue.components}, epic())))

This expression will not overwrite the previous values of the field. It will add the new components to the existing ones.

Enable the rule by clicking on the Enable button →

Use case	Parser functions	Label
Add components of the epic to the current issue
Bulk clear the issue resolution		STAFF PICK
Bulk edit the issue resolution		STAFF PICK
Copy excerpted value from new comments	findPattern() first()
Delete the attachments of an issue 30 days after closing it
Inherit value from parent in Advanced Roadmaps hierarchy	fieldValue() first() parent()
Keep the priority of parents and sub-tasks in sync
Sum up value in parent issue on field change in sub-tasks	fieldValue() sum() subtasks()
Update assignee and reporter to facilitate user deletion		STAFF PICK