You can add a message of the day that will display for public users and authorized users. You can display any text message up to 100 characters. By default, the message is included in the view. The message can be removed by deselecting the Check to use Message of the Day check box.
You can change the message of the day outside of the View Builder by editing the message.html file. This file is located in:
Open this file in any HTML editor and update the message text, which is the <TD> element within the table.
The following image shows the Message of the Day window where you type the message text.
The Message of the Day window opens.
The message can contain up to 100 characters.