Seeing Duplicate Attendees who have registered via RSVP Post date Home › Forums › Ticket Products › Event Tickets Plus › Seeing Duplicate Attendees who have registered via RSVP This topic has 15 replies, 4 voices, and was last updated 7 years, 2 months ago by Nathan Baldwin. The topic ‘Seeing Duplicate Attendees who have registered via RSVP’ is closed to new replies. → Please verify your API key is correctly entered on the settings