Even if I´m locked in as administrator on the phone I use for barcode scanning, I still get a dinied 403 mess, and I dont see a special "read bacode" function in Matukio backend.
Are you logged in in the frontend? Backend and frontend is divided in Joomla!
I havent been able to find explanation at the forum / manual.
The barcode contains a link to an unique URL in Matukio, when this one is opened in the browser the booking is checked-in (or an error message is shown if there are any problems, like that he is already checked in).
The barcode has to be read by a smartphone application (there are hundreds of free out there), which then opens the containing URL in the browser. By default only organizers are allowed to use that URL (so that users don't accidentally check-in there-self etc. - this can only be done once), but that can be changed by a setting.
Hope that explains it better?
Kind regards,
Yves