You can cancel or delete a RingCentral webinar in the RingCentral app.
Go to Webinar via the left navigation bar.
On the Upcoming or Past tab under My Webinars, hover over the webinar you want to cancel or delete, then click the More icon at the far right.
Click Delete, then click Delete on the confirmation popup window.
A cancellation email will be sent out to the cohosts and panelists. If you have invited attendees, you should cancel the webinar in your calendar app (Google or Microsoft Outlook Calendar), so you can notify them of the cancellation.
Note: If you cancel a past webinar, this will delete the data, including recordings, attendee report, and Q&A report, and you won’t be able to access them anymore.