Knowing who plans to show up shapes a lot: the room you choose, the refreshments, even how many chairs you set out. Rock's RSVP system lets you ask a group whether they are coming and track their answers. It is the lightweight cousin of event registration. Registration is robust and flexible, but sometimes that is more than you need. Group RSVP is for when you just need to know who is coming, plain and simple. The articles in this section show you how to enable RSVP on a group, request responses and review who is coming.