Ambulatory medical device, comprising: a) a device controller, the device controller being configured to control the operation of the ambulatory medical device, b) an alert controller, the alert controller including a disposable monitoring unit and being configured • to determine, based on monitoring a grade of exploitation of a first disposable by the disposable monitoring unit, a first alerting interval, the first alerting interval reflecting an earliest and a latest grade of exploitation for replacing the first disposable, thus defining an earliest point in time and a latest point in time for an alert generation due to approaching exploitation of the first disposable as a first alerting cause, • to determine, based on monitoring a grade of exploitation of a further disposable by the disposable monitoring unit, a further alerting interval, the further alerting interval reflecting an earliest and a latest grade of exploitation for replacing the second disposable, thus defining an earliest point in time and a latest point in time for an alert generation due to approaching exploitation of the second disposable as a further alerting cause, • to detect an overlap interval of the first alerting interval and the further alerting interval, • to determine an alerting point in time in the overlap interval, • to generate an alert trigger at the alerting point in time, c) an indicator (30, 33, 35), the indicator (30, 33, 35) being configured to generate an alert upon generation of the alert trigger, wherein the alert is a common alert for the first alerting cause and the further alerting cause and wherein the indicator (30, 33, 35) is configured to indicate the first alerting cause and the further alerting cause. a) a device controller, the device controller being configured to control the operation of the ambulatory medical device, b) an alert controller, the alert controller including a disposable monitoring unit and being configured • to determine, based on monitoring a grade of exploitation of a first disposable by the disposable monitoring unit, a first alerting interval, the first alerting interval reflecting an earliest and a latest grade of exploitation for replacing the first disposable, thus defining an earliest point in time and a latest point in time for an alert generation due to approaching exploitation of the first disposable as a first alerting cause, • to determine, based on monitoring a grade of exploitation of a further disposable by the disposable monitoring unit, a further alerting interval, the further alerting interval reflecting an earliest and a latest grade of exploitation for replacing the second disposable, thus defining an earliest point in time and a latest point in time for an alert generation due to approaching exploitation of the second disposable as a further alerting cause, • to detect an overlap interval of the first alerting interval and the further alerting interval, • to determine an alerting point in time in the overlap interval, • to generate an alert trigger at the alerting point in time, • to determine, based on monitoring a grade of exploitation of a first disposable by the disposable monitoring unit, a first alerting interval, the first alerting interval reflecting an earliest and a latest grade of exploitation for replacing the first disposable, thus defining an earliest point in time and a latest point in time for an alert generation due to approaching exploitation of the first disposable as a first alerting cause, • to determine, based on monitoring a grade of exploitation of a further disposable by the disposable monitoring unit, a further alerting interval, the further alerting interval reflecting an earliest and a latest grade of exploitation for replacing the second disposable, thus defining an earliest point in time and a latest point in time for an alert generation due to approaching exploitation of the second disposable as a further alerting cause, • to detect an overlap interval of the first alerting interval and the further alerting interval, • to determine an alerting point in time in the overlap interval, • to generate an alert trigger at the alerting point in time, c) an indicator (30, 33, 35), the indicator (30, 33, 35) being configured to generate an alert upon generation of the alert trigger,