The thank-you page is your last message to users. Update the text with a personalized message by following these steps.
Go to the right-hand side of the screen and click on Set Up. This will open the setup panel.
From the setup panel, select Builder to begin customizing your page.
Now, click on Demo to preview your page layout.
At the top of the page, click on the Customization section to open the customization menu.
Click on Thank You Page. The landing page will appear, showing the Thank You message.
To modify the text, click on the lower part of the page where the text is displayed.
In the same section, add the text and click on Close.
Note: Keep the text within 280 characters.