Diagnosis
You want to include the appreciation surcharge in the condition type tobe adjusted (usually the basic rent) as part of a rent adjustment.
The system uses the flow category "3WTV" to determine the "appreciationsurcharge" condition type.

System Response
None or more than one of the condition types of the flow category"3WTV" has been assigned in Customizing.
For this reason, the condition type cannot be determined uniquely.

Procedure
Contact your system administrator

Procedure for the system administrator
Check and correct the settings for the condition types in Customizingas required.