This report describes the results of the first pilot test of the draft guidance on evaluating conflict prevention and peacebuilding (CPPB) activities produced by the Organisation for Economic Cooperation and Development – Development Assistance Committee (OECD-DAC). OECD-DAC Members recognise that there is a need to improve understanding of how aid contributes to ending or sometimes sustaining conflicts, and by extension how to evaluate such development assistance for lesson learning and improved aid effectiveness. The purpose of the test in Sri Lanka was to improve guidance, but also to provide useful lessons and recommendations for development actors in Sri Lanka as they develop new strategies for future engagement, or in some cases as they withdraw and take their experience elsewhere.