The final section of the page shows an overview of Third party payments due for a particular pay period. For more details click 'Link to Report' at the left of the screen. The total Employer contributions and Employee contributions are shown and then a Total payment column shows the total amount to be paid to third parties for the period.
To the right of the screen there is an Other payments column which can be used to record the date on which payments to third parties are made. Simply click the Date paid button to input today's date.