The project Water4Ag focuses on synthesizing, elevating and moving work across WLE and partners on improving water use in agriculture (i.e. enhancing water productivity) and establishing an integrated water storage agenda in a broader food systems approach, which are important components of the WLE agenda. Both issues are critical for agricultural water management, but do not get enough traction in the international debate on food system transformations and water management, as clearly recognized in the recent Sustainable Agriculture Water Use Meeting that focused on water productivity (WASAG; 25-27 Feb 2020, Bari, Italy) or in the Special Issue in Water Resources Development. The need for more water storage and an integrated approach was also stressed, for example, at Water Aid’s Water and Climate Summit (10 March 2020, London, UK) or in the UN World Water Development Report 2020. The project will carry out a comprehensive analysis of field data and remote sensing data to assess water productivity interventions in several countries in Eastern and Southern Africa and develop several policy relevant knowledge products (e.g., White Paper on water productivity, 'conceptual pieces' on water productivity and water storage).