Can Meeting Requests be the Default Item Type?

I have a user who used to be able to double-click on the calendar and a meeting request would populate. Now when she double-clicks an appointment request is the default. I can't figure out how to change such a simple thing.

You can't figure it out because it isn't an option. The change in behavior your user noticed could be due to one of two things: the calendar he's double-clicking on or the view he's using.

Whose calendar is the user double-clicking on? Double-clicking on your own calendar or on a calendar you own or have permission to create new items in (such as in a shared mailbox or public folder), will always open an appointment form. Double-clicking on a shared calendar you don’t have create permissions will open a meeting request.

There is one exception: If you use the Schedule View in Outlook 2010 or Outlook 2013.

While you’ll still create appointments in your own calendars, a meeting request is the default for shared mailboxes and calendars, even if you have permission to create items on the calendar.

Use Schedule View for new meetings

If you need to create a meeting request (and don't want to use the New Item > Meeting Request command on the ribbon), right-click on the date and choose New Meeting Request or use the keyboard shortcut of Ctrl+Shift+Q. These methods work on all calendars, including your own.

Once a form is open, switching between appointments and meetings is easy: click Invite Attendees or Cancel Invitation on the ribbon.

convert appointment to meeting