Schedule an Event for a Shared Calendar From Your Own Calendar

The preferred method for scheduling events on a Shared Calendar is to create the event on your own calendar, and then invite the Shared Calendar as an attendee: 

NOTE: To complete these steps, you will need to share the calendar with others. Learn more about sharing an Outlook calendar with other people.

1. Create the new event normally on your own calendar (e.g. your primary calendar is the one called Calendar). 
2. Invite any individuals as you normally would to the invite
3. Add the Shared Calendar to your event as if it, too, was an individual you were inviting
4. Send the meeting invitation 

You should receive a response from the Shared Calendar almost immediately, and anyone viewing the Shared Calendar will see the event just as they normally would. 

Schedule an Event for a Shared Calendar Directly From the Shared Calendar

If you have Editor privileges on the Shared Calendar, you can schedule the meeting directly to it by following these steps: 

1. Hide all calendars except the one you want to schedule an event for
   
   NOTE: You can do this by clearing the check mark next to each calendar in the list on the left, but leave the check mark on the Shared Calendar 
    
2. Start creating your new event
   
   NOTE:  If you are using OWA (Outlook Webmail), be sure to check the Calendar: drop-down menu and ensure that your Shared Calendar is the one selected.
   
   In the desktop Outlook app, you will see the selected calendar listed as In Shared Folder in the status bar at the bottom of the window. 
    
3. Schedule and send your event as you normally would