Navigate to Data⇒Planning⇒Calendar
The Calendar enables users to define working days and non-working days for the entire company i.e. weekends and national holidays. By default all weekends are non-working days however users can change this setting in the Customisation menu.
To add a holiday, locate the day you want to add as a holiday and then left click on that day. A holiday will then be marked on the calendar.
When the system is planning jobs and calculating leadtimes, this day will no longer be included as a working day.
NOTE – if you add a holiday to a day where work is already planned, these jobs will need to be re-processed to adjust their expected completion dates.