If you bill energy consumption based on meter groups, you can allocate meter losses in eTASK.Operating Cost Billing.
Prerequisite
Meter billing is performed via meter groups and is fully configured
Procedure in the FM Portal
Path to the starting point: Technical Building Management - Energy Consumption Billing - Meter Groups
Enter the meter group losses.
Click on "Close the Entry Month" in the menu bar.
When operating costs for the building are recalculated, the losses will now also be allocated to the tenants.