If you would like to edit the date of a published announcement or backdate an announcement (such as when importing existing product update information into LaunchNotes), simply go through the announcement creation workflow and publish your announcement.

💡 If you are importing multiple historic announcements, you may want to toggle notifications to "off" so that notifications are not sent for these announcements in the past.

After publishing your announcement, go back to the Announcements home, and select the published announcement you'd like to backdate, and then select the Update Content & Settings tab. Here you'll see the published time and date of this announcement, which you can edit by clicking on the date field.

Select Ok on the date-picker and then Save and publish at the bottom of this page to save the revised date.