CGAP recently published new guidelines for funders of financial inclusion which encourage funders to take a market systems approach. Market systems approaches have been applied in other sectors, notably agriculture and enterprise development, for many years and lessons and operational tools have been developed based on these experiences. In financial inclusion, experiences with market systems approaches are still rare and there is a limited body of accessible knowledge on how to operationalize a market systems approach in financial inclusion. To fill this gap, CGAP plans to develop a series of case studies that illustrate the practice of market systems development and highlight implications for funders’ strategies and operations.