How to cancel or reschedule booked meetings

From SimplyMeet.me

In order to cancel or reschedule already scheduled meetings:

1. Go to My Meetings

2. Click the "three dots" menu near the meeting you want to cancel or reschedule.
Note! Admins can reschedule meetings even to non-working times.

3. From the dropdown menu click Cancel or Reschedule.

Or it is also possible to navigate rescheduling or cancellation link from the meeting email notification.