You can open meetings you've previously created and make changes.
Find and open the original meeting request in your calendar.
Make changes to the To, Optional, Resources, Start time, End time, or Location boxes.
If there was a scheduling conflict with one or more attendees, click Scheduling Assistant to see possible times and availability. This will help you find a more convenient time.
To send the update to all attendees, click Send Update.
What if I want to know more?