To observe specific holidays during the close period, users with Admin, Manager, or System Admin roles can edit the Holiday Calendar by navigating to Admin Settings > Entities > Manage.
Adding a holiday automatically adjusts your Checklist and Reconciliation due dates based on their specific deadline type:
Business day deadlines: Items become due the day after the holiday.
Hard deadlines: Items become due the day before the holiday.
Weekly frequency tasks: Items become due before the holiday.
NOTE: After making any calendar setting changes, the updates made will apply to all future periods, starting with the current close period. If you need to apply these changes to historical periods, you will need to save changes from the Checklist and Reconciliation settings for due dates to be calculated with respect to these settings in any previously created periods.