When checking in guests at an event using the Mobile Event Management App, users can add those that are not already listed as participants. Can you register a guest to an event on the Mobile Event App without adding a constituent record to RE for them?
When you are checking guests in using the mobile Event Management App, anyone who is not already registered can be added as a participant. The search option in the app exists so that you may search for the Raiser's Edge constituent first before adding a new one. If you add someone as a participant through the app, a new constituent record will be created for them in The Raiser's Edge.