Delete Checklist

To delete the Checklist:

Open the ‘Manage Checklists’ page
Select the Checklist that you want to delete
Click on the ‘bin’ icon in the ‘Action’ column
Click the ‘Delete’ button on the Confirmation dialog

Now the Checklists were deleted

The Checklist will remain for the Jira Issues were the Checklist was applied. But after deleting the progress you will not able to see the progress for this Checklist form the ‘Manage Checklists’ page