When you schedule your meetings, you can reserve a location or equipment for the meeting. When you want to schedule these resources, you invite them to a meeting. The resource receives the invite and if it is free, accepts the meeting.
You receive an email from the resource that either accepts or declines the meeting. A meeting is declined if the resource already has a meeting scheduled for that time or for recurring meetings, if a meeting is scheduled for any of the dates and times of the recurring meeting schedule. You receive an email showing which dates conflict.
Administrator set up resource accounts with the email addresses and configures availability. Some resources may not be scheduled for more than one meeting per invite.