| 摘要 |
The method involves determining in a data processing system on a basis of data from a code reader (40) and/or on a basis of a time span that a one-time code individually marking a product that no longer needs to be traced is available again. The determining includes reading of newly available code from a RFID tag (91-95) or from a bar code. The newly available code is offered for individually marking another product. |
