John Lewis Introduces Retailer Media Network Created in partnership with Publicis Groupe’s Epsilon, the U.K. retailer’s platform allows brands to create and manage campaigns, including via banner and sponsored product ads. In-Store Experience: Sprouts Farmers Market’s New Format The specialty grocer has opened smaller stores that focus even more on the experience for health-minded and food-centric shoppers. Frito-Lay Introduces Mobile Merchandiser for Foodservice Operators