With the emergence of new technology, supplier-direct efforts and shifts due to generational changes, business traveler behavior is changing. As a result, modern managed travel programs must implement tools to capture data from all booking sources. Invisible spend is defined as corporate travel data not captured by traditional means such as TMC reporting. This includes direct-supplier website bookings, as well as bookings with consumer OTA sites. Mobile has added a new wrinkle to the invisible spend dilemma.