The UK has one of the poorest levels of diabetes control in young people in Europe, so helping them to learn how to effectively manage their condition is a matter of high priority. Guidelines for improving diabetes control and long-term health in young people advocate the tailoring of education. The online Adolescent Diabetes Needs Assessment Tool (ADNAT) was developed to meet this standard. This article assesses the perceptions of the use of ADNAT in clinical practice by young people, their healthcare professionals, and their parents or guardians. The authors explore the views on ADNAT’s potential impact on diabetes care, ways of promoting and maintaining its use, and potential future developments