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How to trigger an action with the Didit checklist completed field

Navigate to the project automation section of your Jira project. If you are a Jira admin, you can do this from the global automation administration page.
Click “Create rule.”
Add the “Field value changed” trigger and choose “Didit checklist completed” for the “Fields to monitor for changes” section.
Add a JQL condition which specifies the Didit checklist completed option you would like to target. The two options are “yes” and “no.” These options are caps sensitive.
The option is up to you, but your JQL should look something like below. “Didit checklist completed” = yes
Choose the action you wish to perform based on the Didit checklist completed option you have chosen. In our example we chose to transition the issue.

Now, whenever your checklist is completed, your issue will transition to the “Done” status.
You could also choose to leave a comment, edit the issue, assign the issue, or send an email, among many other options.