In January 2014, a brand new GS1 DataBar barcode was decoded for the first time in live operation in Slovakia. It is used for labeling of meat and dairy products with variable weight within the retail network COOP Jednota Martin. In addition to the item number (GTIN), it includes weight information and a sell-by date. Every retailer is provided with an instant overview of elapsing sale period of selected product groups and enabled to change prices automatically. Contrariwise, customers are reassured that they never buy a product with an expired sell-by date.