There are several things to consider when creating an Appointment in your Outlook calendar. All-day event vs. individual time slot, free vs. busy, setting reminders and recurrence information. You can even insert your e-mail signature in the “Insert” tab.
When you send out a meeting request to a group of people, there is always the chance that some of the recipients will not respond. You can quickly re-send the meeting request to those who have not responded.