Field help (CLEEVETIM) 

When checked, this box is used, in the case of an employee's long-term leave (parental leave for instance), to close the events upon payslip calculation or time cut-off.

In this case, the period end date of the events to be taken into account is recalculated: if the departure date is later than the extraction end date of the next period, the period end date is equal to the final departure date.