Last status change date

Return the date of the last time that the status of the current work item was changed.

If it was never changed, return the creation date.

Configuration

Create a Custom smart text field and use the Jira expression parsing mode.

Expression

CODE

issue.changelogs.filter(changelog => changelog.items.some(item => item.fieldId == 
'status')).map(changelog => changelog.created).concat(issue.created)[0].toString()