RSVP No for someone already registered

In GiveCampus Events, available controls depend on your permissions and the interface used by your institution.

The standalone RSVP-No action checks for a completed registration with the same email. If found, it reports unsuccessful confirmation and does not cancel/change that registration or create/send a new RSVP-No notification. A newly created valid RSVP-No record uses the RSVP-No notification flow. Use registration management to change an existing attendee; the RSVP-No invitation link is not a cancellation mechanism.