Keffys product performance is an in depth analysis service undertaken and presented by a Keffys Limited subsidiary, BExpand Limited. Our team of experts collect data from reliable sources, analyze the data and prepare a report of the product or service in question. Among the reliable data collection sources is Keffys Retail which is one of the biggest data source for FMCGs and Keffys Mtaani. Other external sources are used based on the product in question