To cancel a Meetup that's already scheduled for your Meetup Group, here's what you need to do:
* Go to your Meetup Group home page (make sure you're logged in)
* Find the Meetup that needs to be canceled under Upcoming or Suggested and click on the name.
* Click Cancel on the page with the Meetup's details (If the Meetup doesn't have a date set yet, you'll see Delete instead of Cancel).
* A pop up will appear asking you to confirm that you want to remove the Meetup. As long as the Meetup had a date set, you can choose to Delete this Meetup from the calendar or leave the Meetup on the Calendar as Canceled.