Cancel a webinar in Microsoft Teams
To cancel a webinar in Teams:
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Select CalendarÂ
 Â in Teams. - 
            
Right-click the event you want to cancel.
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Select CancelÂ
 . 
Important:Â Canceling a webinar can't be undone.
To cancel a webinar from the event page:
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Select CalendarÂ
 Â in Teams. - 
            
Select the event you want to cancel and open its details.
 - 
            
On the event page, select Cancel event.Â
 
If you cancel a webinar, attendees will be notified automatically via email.