You can send an Outlook meeting invitation (referred to as a meeting request) to anyone who has an email account-even to a person who doesn’t use Outlook. You can review attendees’ schedules to locate a time when everyone is available, or have Outlook find a convenient time for you. Outlook displays the individual and collective schedules of people within your own organization, and of people outside of your organization who have published their calendars to the Internet. Scheduling meetings through Outlook is significantly simpler than other methods of scheduling meetings, particularly when you need to accommodate the schedules of several people.
A primary difficulty when scheduling a meeting is finding a time that works for all the people who need to attend it.