Open the Calendar tab on the left side of the screen.
Click the + New Meeting button at the top of the screen to create a new scheduled meeting.
Enter the details of the meeting you would like to schedule, including the title, required attendees (to add people from outside your organization, enter their Email address in this field), time, and description.
Hit the Save button at the top of the screen to schedule the meeting and add it to your Calendar.
Saving the meeting means invites will be sent to the attendees through Outlook, as well as added as a scheduled reminder to their Outlook Calendar.