When a traveller books a trip, the order is referenced internally by a tracking identifier, known as the order reference, with the format TVLDxx-nnnn. This reference is then transmitted to the travel agency or supplier to be registered in the invoice for the trip.
When the invoice arrives in the invoice management system, the service items associated with the reference, together with the associated agency or supplier fees, are matched up with the trip details via an automated reconciliation process. Manual intervention is necessary only in the event of exceptions (see Adjusting an Invoice).
The order reference is shown in the corresponding column of the invoice displays, for example: