What happens when the checklist on your page has been completed by a user?
Before, they would simply see the checklist with all items checked.
Now, you can enable a customizable congratulations page for your checklist's completion - here's how to do that
1. Open you checklist settings
2. Scroll until you see "Show message on completion" 
3. Enable this setting and save the settings.
4. Once you close the settings, you will see that another item in your checklist editor was added on the left. When selected, its content can be edited - you can replace the image and customize the text.
If you need any assistance, please feel free to submit a ticket.