By default, the self certification field is set to be five days for all employees. This field denotes the maximum number of days an employee is allowed to be off with a sickness absence type before they can no longer self-certify that absence.
To change an employee's self certification days value, follow these steps.
In the Absence zone, click Absence.
Click Absence History, then open the employee record.
Click the Individual Settings tab.
Change the value Self Certification Days, then click Save.