The ticket reference is a field that can be used to match up tickets sold in Passenger Cloud to other systems. It is not displayed anywhere in Passenger apps and is only used in Passenger Cloud for reporting, such as exporting sales information.
Using the Account Reference to enable Ticketer ETM QR codes
For a QR code to scan correctly against a Ticketer ETM the ticket Reference in Passenger Cloud must exactly match the External ID of the same ticket product in Ticketer's Portal.
The code must be a maximum of 4 alphanumeric characters, e.g. AW07. This length restriction is set by Ticketer. Passenger Cloud does not have the same restrictions for its ticket Reference field.