Use of a labeling machine for labeling containers, such as bottles, comprising a transport route on which containers can be transported, and on which the containers are transported with the help of or in container stations, wherein the transport route has assigned thereto at least 6 labeling units (111, 112, 113, 121, 122, 123) for labeling the containers and 3 of said labeling units are respectively provided as a labeling group (110, 120) which is controllable by a control unit, wherein the labeling units (111, 112, 113, 121, 122, 123) of one labeling group (110, 120) are adapted to execute the same labeling function, characterized in that the labeling machine is configured such that either in each labeling group (110, 120) the labeling unit (111, 113, 121, 123) that is the first or third one in transport direction of the containers is controlled by the control unit as the primarily working labeling unit and the labeling unit (112, 122) that is the second one in transport direction is controlled as a redundant labeling unit, wherein a retrofitting of one of the labeling groups (112, 120) from a first label type to a second label type comprises the following steps: 1) retrofitting the first or third labeling unit (111, 113, 121, 123) to the second label type, wherein the labeling unit (111, 113, 121, 123) that is not the primarily working labeling unit is retrofitted 2) starting the labeling process of the second label type with the retrofitted first or third labeling unit (111, 113, 121, 123) as the primarily working labeling unit and stopping the labeling process of the first label type which is executed on the third or first labeling unit (111, 113, 121, 123) 3) retrofitting the redundant labeling unit (112, 122) of the labeling group (110, 120) to the second label type 4) retrofitting the third or first labeling unit (111, 113, 121, 123) that has not been retrofitted yet to the second label type, or in each labeling group (110, 120) the first and second labeling unit (111, 112, 121, 122) in transport direction is controlled by the control unit as primarily working labeling units, and the third labeling unit (113, 123) in transport direction is controlled by the control unit as the redundant labeling unit, wherein a retrofitting of one of the labeling groups (110, 120) from a first label type to a second label type comprises the following steps: 1) retrofitting the first or second labeling unit to the second label type, wherein the labeling unit that is not the working labeling unit is retrofitted, 2) starting the labeling process of the second label type with the retrofitted first or second labeling unit as the working labeling unit, and stopping the labeling process of the first label type which is executed on the second or first labeling unit, 3) retrofitting the redundant labeling unit of the labeling group to the second label type, 4) retrofitting the second or third labeling unit that has not been retrofitted yet to the second label type. 1) retrofitting the first or third labeling unit (111, 113, 121, 123) to the second label type, wherein the labeling unit (111, 113, 121, 123) that is not the primarily working labeling unit is retrofitted 2) starting the labeling process of the second label type with the retrofitted first or third labeling unit (111, 113, 121, 123) as the primarily working labeling unit and stopping the labeling process of the first label type which is executed on the third or first labeling unit (111, 113, 121, 123) 3) retrofitting the redundant labeling unit (112, 122) of the labeling group (110, 120) to the second label type 4) retrofitting the third or first labeling unit (111, 113, 121, 123) that has not been retrofitted yet to the second label type, 1) retrofitting the first or second labeling unit to the second label type, wherein the labeling unit that is not the working labeling unit is retrofitted, 2) starting the labeling process of the second label type with the retrofitted first or second labeling unit as the working labeling unit, and stopping the labeling process of the first label type which is executed on the second or first labeling unit, 3) retrofitting the redundant labeling unit of the labeling group to the second label type, 4) retrofitting the second or third labeling unit that has not been retrofitted yet to the second label type.