This Learning Case is a “work in progress” developed under the project “Scaling up Technologies in Orange Fleshed Sweet Potato Using the Agricultural Innovation System (AIS) to Address Food and Nutrition Security in Eastern and Central Africa”. The project duration was from February 2012 to October 2013 with funding provided through the ASARECA Multi Donor Trust Fund. This regional project operated in target districts in Kenya, Tanzania and Uganda. The overall project was led by the Lake Zone Agricultural Research and Development Institute (LZARDI), Tanzania with technical backstopping from the International Potato Center (CIP), sub-Saharan Africa Regional Office.