To set the Message of the day you can click on the burger menu and click Edit Messages
This will bring up a box for you to add the Message of the Day.
Type the message in and once done click Add Message
Or you can Edit Timesheet and go to Day Message.
Click Show and you will be able to add in the message details
You will be able to add more than 1 message if needed
Please note that there is no way to bulk add a message for the day to multiple day, each day will need to have the message added.
The Message of the Day can still be added when there is no tee sheet has been added to the P.O.G.