EuroPris organised a workshop on Offender Management Systems – The Heart of the Digital Prison from 3–4 April in Split, Croatia. With over 50 participants from across Europe, experts from the EuroPris ICT in Prisons Expert Group discussed the evolving role of OMS in data-driven prison management, highlighting current practices, implementation challenges, and future expectations across European prison systems. This summary outlines the key discussions and highlights some of the many excellent presentations.