Device Removal 
You can install devices in the following ways:
Technical removal only, if a device (such as a control meter) has undergone technical installation only.
Billing-related removal only, if a device in an installation is no longer to be included in billing
First billing-related and technical removal later , for example if billing and technical areas in a utility company are managed by different employees.
One billing-related and several billing-related removals. This would apply in the case of a pressure regulator or an ARCR that controls several installations.
Full removal, for example in the case of a single-family home that is dismantled.
When you enter the removal, the device must not have been modified or changed in the system after the actual removal date. The entry in the system must correspond to the actual history of the processes.
Example
You enter the removal on 10/12. The actual removal took place on 10/08. A device modification or a change to the device data may not have been entered after 10/08.
Before a technical installation can be performed,
The device must not have already undergone billing-related installation on the removal date
The device must not control any other device
No register of the device may be part of a register relationship that is automatically terminated
In the case of technical removals, the same prerequisites apply as for the removal of a piece of equipment ( Device ) from a functional location ( Device location ) in the Plant Maintenance (PM) application component.
For more information see the following in the Technical Objects (PM-EQM) application component:
Device removal includes the following phases:
A removal order is created for a device or a device group in the Service Management (PM-SMA) application component. This results from a company requirement (such as the dismantling of an object) or an external requirement (new connection).
The removal order is executed and confirmed.
The removal of the device is entered in IS-U.
For more information, see Installing, Removing, and Replacing Devices
Note
If the device belongs to a device group, the entire device group must be removed in the case of technical and full removals.
( )
If the last meter is removed from a device in an installation with a valid contract, the system issues either a warning or an error, depending on how you define system parameters for installation/removal/replacement.
Technical removal
The device is removed from the device location. This corresponds to the removal of a piece of equipment from a functional location.
The system prorates the technical data of the registers.
Billing-related removal
The system terminates billing-related allocation of the device to the installation.
The system prorates the billing-related device and register data of the installation
Full removal
The device is removed from device location with respect to technical data
The system terminates all billing-related allocations of devices to installations.