Through the ticketing platform, you can uncheck the tickets of an event manually.
This way in the case of a multi-day festival, if you don't have any other way to check multi-day tickets (e.g wristband etc.), you can re-scan the tickets of an event.
This process can be done through the event's settings page.
In oderd to go to the event's settings page, click on the "New order" tab, and right click on the event you want to uncheck its barcodes.
On the pop-up, select "settings".
In the "check-in starting time" field there is the option to "uncheck all event date's barcodes". (If this option is not visible to you, contact with our team to have it added.)
On the next pop-up, you are asked to confirm the action.