Open the 
Location Card
window and select a location.
On the Warehouse tab, click the AssistButton in the Customized
Calendar field,.
The Customized Calendar Entries window appears. At this point, the
date entries are the same as those in the base calendar. Nonworking
day entries appear in red, and the program puts a checkmark in the
Nonworking field.
Click Functions, Maintain Customized Calendar Changes.
The Customized Calendar Changes window appears.
When you enter a line, the program automatically puts a checkmark in the Nonworking field. You can remove the checkmark if you want to change the status to working day.
You can use the Recurring System field to mark a particular date
or day as a recurring nonworking day. You can select either the
Annual Recurring or Weekly Recurring option. If you select Annual
Recurring, you must also enter the relevant date in the Date field.
If you select Weekly Recurring, you must also select the relevant
day of the week in the Day field.
If you leave the field empty, you must fill in the Date field. The
program will fill in the Day field automatically. This could be
useful if you want to mark an individual date as a nonworking or
working day.
When you return to the Customized Calendar Entries window, you will observe that the program has dynamically updated the date entries with the changes that you made.
When you return to the Location card, you will observe that the Customized Calendar field contains the word Yes, indicating that a customized calendar has been set up.