‘Off-policy’. Two little words that send a collective shiver down the spine of travel managers everywhere. While it sounds fairly innocuous, corporate travellers playing fast and loose with their travel plans, and booking parts – or all – of their trip somewhere other than via their employer or travel management company’s chosen GDS has long been a problem for the industry. The reasons are obvious: not only does it pose problems for traveller tracking and duty of care; it also represents a crucial source of lost revenue.