First you will setup your waiver that your guests will fill out online and submit.
Next you will add or import your guest names (and email addresses if you have them). You can update your guest list at any time.
All guests start with a status of Pending, meaning they haven't submitted their waiver yet. Once they fill out and submit their waiver, their status will change to Checked In.
At any time, you can review your Guest Check-Ins so that you know who has and has not checked in yet.