When you import your data into Qflow for events there is a column for barcode data. If your excel or CSV file contains a barcode column (from your ticketing provider or another source) then you can match your column data to the barcode data header. Check out importing data into Qflow for events.
We will then use your barcode data to generate the barcode image.
If you don't have any barcode data and want to send out invitations with a barcode to check-in with Qflow for events, we'll automatically populate the barcode data for each guest and use this for the barcode image on your invitations so check-in can be achieved.