How do I “unconfirm” a meeting?
It’s not possible to “unconfirm” a meeting without confirming it for a new date/time. Normally, you will need to cancel the meeting request and send a new one. This will minimize confusion for meeting participants. An alternative is to email all of the participants advising them to disregard the confirmation and to continue responding, after which point you’ll confirm the meeting for a new time. We would only suggest that with a small group since the likelihood of misunderstandings will increase with larger groups.