The present invention relates to method and system for providing series of serialized unique information on a substrate together with product related information. The method comprising steps of: printing a first product relevant information on the substrate using a first set of printer device (15); storing said first product relevant information a data storage device (20); providing said series of serialized unique information from a source of serialized unique information, using a second set of printer device (30) or marking device on the substrate; storing information about the serialized unique information to a data storage device (20); printing a second set of product related information on the substrate using a printer device (42); and analysing the printed serialized unique information and the first and the second set of product related information on the substrate when formed to a package.