Make sure you have any desired Groups configured to appear in Check-In Suite. See this KB for details on setting up Groups to appear in Check-In Suite.
Make sure you have any desired Events configured to appear in Check-In Suite. See this KB for details on setting up Events to appear in Check In Suite.
Make sure you have any desired Rooms configured to appear in Check-In Suite. See this KB for details on setting up Rooms to appear in Check-In Suite.
If configured, you can send text messages from the Participant Details of Check-In Suite. You must have a Twillio account and your system must be configured for texting to use this feature.