We don't directly support QR codes as there is no API for them. The Eventbrite platform creates QR Codes directly tied to each attendee, so you can use their Organizer app to scan in registrations during the event.
On the integration side, the event, order, and attendee records will be synced back to Salesforce when someone uses the QR code. You can learn more about Eventbrite QR codes here.
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