Normally once a pay period has been created it will require no further maintenance. However, holidays or unforeseen events may require the Closed date to be adjusted to allow users extra time to access their timecards, or the Processed date to be adjusted to allow extra time to complete payroll processing. Either of those dates can be adjusted with minimal risk—just make sure you still run the employee import after the processed date, not before or on it, if you are importing updated accruals. Modifications to the Start and Stop dates of a pay period should only be done to future pay periods as this will change the start and stop dates on the timecards as well.
To modify the data of a pay period, click on the field you want to change and make the edit. Click Update to save the edits.