To allow employees to add an absence that spans over a payroll period, you need to find and enable the global Enable Payroll Period Overlap Check.
To find this setting follow the steps below:
Click Configuration.
Click Settings and then System Settings.
Click Global and search for Enable Payroll Period Overlap Check.
Change the setting:
True: Employees can't book holidays or sicknesses which span over a payroll period
False: Employees can add absences that span over a payroll period.
📌Note: If the system should check for the absence overlapping two payroll periods then two separate records will need to be created for each period.