You will need to delete all absences and timesheet data that are recorded prior to the new start date.
You can check and amend the records by following the steps below.
📌Note: If the new starter is a former employee who left the company and then came back, if you used a different email address when you rehired them, you may not be able to access their absence history.
Click Access Button
then click Employee.
Click the relevant employee then click the Planner tab.
To view a different holiday year, click the arrow next to the current year.
Click the relevant month then click the holiday you need to delete.
Click Holiday - Duration : X days then click Delete.