When you change a title or add/remove new speakers, the next time you flip the Generate Virtual Sessions toggle, the system will update your existing Meeting or Webinar and send new speaker emails as necessary. Newly added speakers will need to confirm in the email sent from ATIV. Only newly added speakers will receive emails from Zoom.
For critical changes like date or session time updates, the next time you flip the Generate Virtual Sessions toggle, the system must first delete the original Meeting or Webinar and will then create a brand new meeting or webinar. As such, all speakers for this webinar or meeting will receive new emails with new links and would need to confirm in the email sent from ATIV. Webinar panelists (speakers) will also receive a new email from Zoom.
More details on when/what emails are sent: https://support-eventpilot.ativsoftware.com/support/solutions/articles/24000054200