We apologize for adulterating one of retail’s most famous principles. We simply want to highlight the role data plays in modern retailing’s quest for detail. Be it optimal pricing, store layout, supply chain, logistics or merchandise, there is no facet of retailing that is untouched by the benefits of data insights. A clear understanding of different customer profiles, their frequency of shopping & average money spent on each visit are considered as the cornerstones of retail success. The metamorphosis of retailing from brick-and-mortar to e-commerce has changed the dynamics of success in this space. Data-driven insights have been instrumental in that change.