If you wish to make your event public on the Lead Retrieval app, under the “Manage” tab select “Settings” under Lead Retrieval. If “Public” is toggled “OFF” please turn it on so as to allow exhibitors or sponsors to locate your event via the Lead Retrieval app. You will then be able to set a passcode that exhibitors can use to access your event.
When your pre-purchased licenses run out, you can allow exhibitors access to purchasing a license. To do so, be sure to toggle License Fee "ON".
See the screenshot below: