As an event organizer, you need to have a clear idea of the attendees to whom you have sent the event invitation as well as those who have claimed their invitation. The filters available on the invites tab help to separate the invites and ensure everyone joins the event on time.
Filtering Invites by Status (Steps)
Go to the URL manager.brella.io
Go to "People" tab
Click "Registrants"
Click on the "Email Invite" icon
Select either of the filtering options "Sent/Not sent"
Click "OK"
All sent invites will pop up
After completing the above filtering, you can resend the invites to selected non-claimed invitees. Go to the article here for more information on this.
To learn more about the invite-only feature, go here.