Monitoring and evaluation (M&E) systems are essential in achieving well-designed programmes that are appropriate to the people and context, and that are effective and efficient. Taking the time to allocate time and resources for M&E planning ensures that psychosocial interventions are conducted safely and with respect to local cultures and traditions. Without these systems in place, resources may be wasted on programmes that are ineffective or inappropriate, and interventions run the risk of doing more harm than good.