Work through these checks in order when an attendee badge scans as "invalid QR code". Most cases are fixed by step 4.
The scanning device must be signed in to the event the badge was printed for. Each event has its own attendee list, so a badge from one event won't scan in another.
Fix: Switch the scanner to that event and scan again.
Search for them in People > Manage Attendees in the same event and check they are active.
Fix: If they are missing, add them again and print a new badge.
The badge must come from the Print or Download button, not a screenshot or print of the on-screen preview. The preview uses a placeholder "Sample QR Code".
Fix: Print the badge again with Print or Download.
Print a fresh badge for that attendee from Manage Attendees.
Fix: If the new badge scans, replace the old one.
A badge can carry an Attendee, External, Sponsor and Exhibitor QR.
Fix: Scan the Attendee QR, and add a text label under each QR on the badge design so staff know which one to scan.
If a freshly printed badge for an active attendee still fails on the right event, raise it with the support team. Include:
Need more help? Contact Eventify support from the admin panel.
