If you ever need to lock or close an event to stop attendees from registering, use this function. For example, if you need to re-publish an event or import attendees, ensure that you first lock the event so that you do not lose any information during the process.
1.
In the Event Maintenance screen, find the event you want to lock.
2.
Click on the Options button and select Lock Online Event.
3.
This will send the CLOSEEVENT function to Attendee Online. It will now not let anyone log onto it, or to post any data to it if they are already logged on.