Diagnosis
Billing documents from secondary installation &V1&are required for billingprimary installation &V2&.These billing documents must correspond to thebilling period of the primary installation. This means that theunprocessed billing documents of the secondary installation must bewithin the interval &v3& to &v4&. This interval is made up of thebilling period of the primary installation and theinterval of the secondary installation before andafter the meter reading date. However, secondary installation &v1&contains an unprocessed billing document thatis not in this interval. This can be a real billing document or - ifsecondary installation &v1& isdistribution-relevant - a billing documentcreated by the simulation of a billing order.

System Response
The billing procedure for primary installation &V2& is cancelled.

Procedure
There can be several causes for this:

• You entered a periodic meter reading result for the secondary
installation and the meter reading date of this result is too far awayfrom the meter reading of the primary installation. This means itexceeds the predefined meter reading intervals. If this is the case,change the meter reading date of the secondary installation.

• You entered a delayed move-in for the secondary installation. The
move-in is in a period for which the primary installation has alreadybeen billed. Therefore, the start of the billing documents billingperiod is too far back in the past.
The delayed move-in might reveal that the previous billing of theprimary installation was incorrect. If this is the case, you mustreverse the previous billing of the primary installation. Otherwise youhave to delete installation &v1& from the installation group forthe period for which the primary installation has already been billed.