Diagnosis
Billing document &v1& belongs to installation &v3&. This installation asecondary installation to primary installation &v4& in the documentbilling period. However, one of the following historical characteristicsof the secondary installation has changed in the document billingperiod:

• The secondary installation role


• The primary installation key


• The grouping type of the primary installation

These changes are not permitted.

System Response
Primary installation billing is cancelled.

Procedure
You have the following options:


• Change the historical characteristics of installation &V3&.


• Bill installation &V3& until the date the changes were made. This
enables you to avoid the change in the billing period of a document.