QR codes for event posters, tickets and badges
Schedules change until the day of the event. Print codes that follow the changes.
Posters printed before the schedule is final
Point the poster's dynamic code at the event page. Every schedule change, venue move or speaker swap happens on the web page, and the poster keeps working.
During the event
Re-point the same code hour by hour: to the current session's slides, the lunch menu, the feedback form at the end. Attendees learn that one code is the 'what's happening now' link.
After the event
Switch the destination to the recordings or next year's early-bird page. Posters still hanging in offices keep converting.
Which placements earn scans
Use a distinct code for the poster, the badge and the lanyard insert. The counts show what people actually scan, which guides next year's print budget.