Method for initializing an analyte measurement system (1, 2, 3), the analyte measurement system (1, 2, 3) being designed for continuous in-vivo measurement of a body fluid analyte concentration, the method including the steps of: a) providing the analyte measurement system (1, 2, 3,) with a control device and a separate skin-mountable patch device (1, 2), the patch device (1, 2) including a disposable unit and an electronics unit, the disposable unit including a transcutaneous analyte sensor and machine-readable sensor identifier, wherein the sensor identifier is unique for the analyte sensor, the electronics unit being configured to releasable couple for an application time period to the disposable unit; b) providing a number of stored initialization data sets in a remote database system, each stored initialization data set comprising initialization data for an analyte sensor batch, wherein the initialization data sets each include sensor calibration information; c) reading, via a reading device of the control device, the sensor identifier from each of a number of disposable units into the control device in a sequence and transmitting the sensor identifiers to the remote database system in common; d) determining, by the remote database system, a matching initialization data set for each of the sensor identifiers, the matching initialization data set being a stored initialization data set that matches the respective sensor identifier; e) transmitting the matching initialization data set corresponding to each sensor identifier from the remote database system to the control device in common; e1) reading, via the reading device, the sensor identifier from a specific disposable unit from the number of disposable units into the control device a second time; e2) determining a specific matching initialization data set from the matching initialization data sets, the specific matching initialization data set matching the sensor identifier of the specific disposable unit; f) transmitting the specific matching initialization data set to the electronics unit and storing the matching initialization data set in a memory of the electronics unit. a) providing the analyte measurement system (1, 2, 3,) with a control device and a separate skin-mountable patch device (1, 2), the patch device (1, 2) including a disposable unit and an electronics unit, the disposable unit including a transcutaneous analyte sensor and machine-readable sensor identifier, wherein the sensor identifier is unique for the analyte sensor, the electronics unit being configured to releasable couple for an application time period to the disposable unit; b) providing a number of stored initialization data sets in a remote database system, each stored initialization data set comprising initialization data for an analyte sensor batch, wherein the initialization data sets each include sensor calibration information; c) reading, via a reading device of the control device, the sensor identifier from each of a number of disposable units into the control device in a sequence and transmitting the sensor identifiers to the remote database system in common; d) determining, by the remote database system, a matching initialization data set for each of the sensor identifiers, the matching initialization data set being a stored initialization data set that matches the respective sensor identifier; e) transmitting the matching initialization data set corresponding to each sensor identifier from the remote database system to the control device in common; e1) reading, via the reading device, the sensor identifier from a specific disposable unit from the number of disposable units into the control device a second time; e2) determining a specific matching initialization data set from the matching initialization data sets, the specific matching initialization data set matching the sensor identifier of the specific disposable unit; e1) reading, via the reading device, the sensor identifier from a specific disposable unit from the number of disposable units into the control device a second time; e2) determining a specific matching initialization data set from the matching initialization data sets, the specific matching initialization data set matching the sensor identifier of the specific disposable unit; f) transmitting the specific matching initialization data set to the electronics unit and storing the matching initialization data set in a memory of the electronics unit.