You want to use the possibilities of counting classes.

AP (Paid Absences):Counting classes designated as 'AP' are used to track paid absences. Calculations using these counting classes will affect an employee's payroll.

AU (Unpaid Absences):Counting classes designated as 'AU' are used to track unpaid absences. Calculations using these counting classes won't generally impact payroll directly but might affect things like entitlements or reporting.

Why the other options are incorrect:

SA, KA: While 'SA' and 'KA' might be valid counting class types within a specific SAP HCM implementation, they are not standard classifications across all systems