A method of handling laboratory sample containers by a laboratory sample container handling system is presented. The method comprises providing a laboratory sample container comprising an assigned ID information to the laboratory sample container handling system, reading the assigned ID information, checking, if the read ID information is unique or not unique within the laboratory sample container handling system, and if the read ID information (2) is not unique within the laboratory sample container handling system, assigning a new ID information to the laboratory sample container. The new ID information is unique within the laboratory sample container handling system.