Hello, In the same way you can send emails/newsletters to those who haven't opened at a later date, you should be able to resend an event invitation to those who haven't registered yet. This feels like it should be a non-negotiable for events, given you need headcount typically by a certain "RSVP" date.  Instead, the support person walked me through this process instead: You need to make a copy of the original list "350 contacts", suppose "Copied" list and add the registered contacts in a new list suppose list "Register", then remove "Copied-register" list, you will left with the non-registered people. Once you create the list, you then need to make a copy of the event email and send that email to the new list. That is crazy and not user-friendly in the slightest. Please consider this development request.   ... View more