I spent years standing behind a booth. You know the rhythm. Four days on your feet, a few hundred conversations, a fishbowl of business cards, and a suitcase of printed catalogs that weighs more on the way home than it did on the way there because nobody took one.
Then you fly back. The cards sit in a drawer. Two weeks later someone asks, "did anything come out of the fair?" and the honest answer is: we don't really know.
The lead was never the card
The card tells you a name and a company. It does not tell you which products the person stopped to look at, what price tier they belong to, or whether they were a serious buyer or a competitor doing research. By the time you sit down to follow up, the context is gone. You are emailing a cold list and calling it a pipeline.
Meanwhile the buyer has visited eleven other booths and remembers none of them clearly. The first supplier who shows up in their inbox with the exact catalog and pricing they need usually wins. Most of the time that supplier is not you, because it takes you a week to prepare a tailored PDF.
What we wanted instead
One QR on the booth. The visitor scans it, sees your catalog at the right price for their segment, and leaves their name and email to continue. Before you are back at the hotel, the lead is in your inbox with the products they actually viewed attached to it.
That is the whole idea behind OLAX. The booth spend does not change. What changes is that the €40,000 finally produces something you can measure and act on, instead of a drawer of cards.
A trade-fair lead has a shelf life of about 48 hours. After that you are competing on memory, and memory is not on your side.
If you exhibit, try this at your next fair: put one link behind one QR, and see how different the Monday after feels.