A short code stays easy to scan
The more you put inside a QR code, the denser it becomes, and the longer it takes a camera to read it, especially on a printed sheet or a dim phone screen. A short code stays readable in a hurry.
Nothing sensitive travels on the ticket
If a ticket is photographed, shared or lost, it reveals no address and no phone number. The guest details stay in your sheet and in your check-in app.
Guest details still appear during the scan
Your staff see the name and the details you chose, because the scanner looks them up when the code is scanned. You decide what appears there.