Line managers are central to workplace mental health, yet many are expected to lead without the preparation or confidence they need. In this session, we distil over a decade of research to uncover what line manager mental health training actually achieves, and what doesn’t make an impact. Drawing on our clinician-led work at Smart About Health, we’ll share practical, evidence based insights into what truly shifts manager behaviour, why some training falls flat, and how confidence, context and organisational support shape real-world outcomes. Attendees will leave with a clear understanding of the clear benefits of line manager mental health training and how it can deliver meaningful, measurable change for managers, employees and organisations.