The introduction of a new information technology can cause wide-ranging organisational changes; changes that are perceived by users in differing ways and consequently can result in a wide variety of adaptation responses. Understanding those responses, how they are formed and how they can be positively managed is a complex but worthwhile task that is necessary in order to ensure optimal usage of technology. This paper outlines an in-progress study that examines user responses to a mandatory health information technology that has been introduced in Saudi Arabia. Interviews are conducted at defined data points with nurses and doctors working in four acute care hospitals in Jeddah, as well as with the CIOs and Managers of those hospitals. The study findings contribute to the body of knowledge regarding the key drivers and processes that underpin different types of user response in a mandatory IT use setting, including identifying the factors that can cause those behaviours to transition over time. These findings will provide useful insights for managers seeking to achieve optimal employee usage of health information technologies.