Method for determining differences between an automated installation and a digital twin of the automated installation, comprising the steps of: a) fastening a sensor unit to a process material; b) continuously recording at least one measurement variable by means of the sensor unit while the process material with the fastened sensor unit is processed by the automated installation; c) comparing a temporal profile of the at least one recorded measurement variable with a temporal profile of at least one corresponding simulated measurement variable which was simulated using the digital twin; and d) identifying a location in the automated installation at which there is a difference between the at least one recorded measurement variable and the at least one corresponding simulated measurement variable if the temporal profile of the at least one recorded measurement variable differs from the temporal profile of the at least one corresponding simulated measurement variable, characterized by the primary steps of: j1) modeling a virtual sensor unit on a virtual process material inside the digital twin, wherein the virtual sensor unit has a parameterizable sensor geometry which records a relative position of a location at which a virtual physical variable was captured by the sensor geometry; j2) simulating the at least one corresponding measurement variable, wherein the at least one corresponding measurement variable and the relative position are recorded by the virtual sensor unit having the parameterizable sensor geometry while the virtual process material with the virtual sensor unit is processed by the digital twin; j3) providing the sensor unit according to the recorded relative positions. a) fastening a sensor unit to a process material; b) continuously recording at least one measurement variable by means of the sensor unit while the process material with the fastened sensor unit is processed by the automated installation; c) comparing a temporal profile of the at least one recorded measurement variable with a temporal profile of at least one corresponding simulated measurement variable which was simulated using the digital twin; and d) identifying a location in the automated installation at which there is a difference between the at least one recorded measurement variable and the at least one corresponding simulated measurement variable if the temporal profile of the at least one recorded measurement variable differs from the temporal profile of the at least one corresponding simulated measurement variable, characterized by the primary steps of: j1) modeling a virtual sensor unit on a virtual process material inside the digital twin, wherein the virtual sensor unit has a parameterizable sensor geometry which records a relative position of a location at which a virtual physical variable was captured by the sensor geometry; j2) simulating the at least one corresponding measurement variable, wherein the at least one corresponding measurement variable and the relative position are recorded by the virtual sensor unit having the parameterizable sensor geometry while the virtual process material with the virtual sensor unit is processed by the digital twin; j3) providing the sensor unit according to the recorded relative positions. j1) modeling a virtual sensor unit on a virtual process material inside the digital twin, wherein the virtual sensor unit has a parameterizable sensor geometry which records a relative position of a location at which a virtual physical variable was captured by the sensor geometry; j2) simulating the at least one corresponding measurement variable, wherein the at least one corresponding measurement variable and the relative position are recorded by the virtual sensor unit having the parameterizable sensor geometry while the virtual process material with the virtual sensor unit is processed by the digital twin; j3) providing the sensor unit according to the recorded relative positions.