Under the "Manage" tab, select "Settings" under Lead Retrieval. If "Public" is toggled "OFF", please contact your Boomset Account Manager to turn it "ON", that way your event will show up on 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".