Case studies Welcome to the central library for all GS1 case studies. Use search or filters to discover case studies related to specific topics such as benefit, industry, service, standard or location. Search Industry Retail (-) Consumer packaged goods (CPG) Apparel Fresh foods General merchandise Marketplaces Healthcare (-) Transport & Logistics Technical Industries Foodservice Public sector Region North America Europe Country Germany United States Benefits Data quality Operational efficiency Standards GTIN 1D barcodes GPC Services (-) Verified by GS1 GDSN Type of organisation Manufacturer Wholesaler (-) Verified by GS1 (-) Consumer packaged goods (CPG) (-) Transport & Logistics Clear all filters Showing 2 results Retail, Consumer packaged goods (CPG) The data quality journey of chocolate and candy giant Mars Wrigley Thanks to a range of data quality initiatives, product data accuracy is now close to 100% Retail, Consumer packaged goods (CPG) METRO and P&G gain insightful business benefits from Verified by GS1 METRO and P&G recently undertook a collaborative evaluation of Verified by GS1.