Open the ClubZap app and tap on the chat tab at the bottom of your screen
Open the chat group you want to sent a reminder for
Select the event you want to send the reminder for and click on View all responses
Click on the No Response Tab to view a list of those who have not RSVP'd yet.
Click on Send Reminder to initiate a message reminding those who have not responded yet to RSVP.
Note: The resend can only be completed once every 24 hours. Anyone who has already RSVP'd will not get the message prompting them for a response.
Also you can now automatically schedule these reminders to respond as detailed here.