When you are running your payroll, and it is at the "Verify" Stage, firstly you are going to want to click in to edit the payroll.
Once you click into edit, you will see the below screen and an icon named "people count". Click on the 'Payslip Note' button to open a new screen.
When in this screen you can see there is the option to add a payslip note at the top left of the screen. Here you can add a note, then once completed you can click the button next to the box saying "Apply Note to all". This will then apply that exact note to the message box at the bottom of the payslips. If you wanted a different note on each payslip, use the individual note boxes next to the employee names and click apply.
Once applied, click close and run the payroll as normal. Once completed you will see on the payslip this note appears in the message box.
