Use Volgistics’ Holidays feature to remove volunteers from the schedule on days your organization will be closed.
If your organization closes or just keeps minimal staff on certain dates you can add the date as a holiday in your account. This will automatically remove all regularly scheduled volunteers from the schedule for the date you list as the holiday. If volunteers are needed on the holiday, you can schedule them for a single day without filling an opening, or create a “one day only” (as opposed to an “ongoing”) opening on that date. Help topic 2158 tells more about how to make openings.
You can learn how to setup the holiday dates for your account in Help topic 1022. Each year you will need to add the holidays your organization will be observing, or edit the previous entries to show the correct date for the current year.