Diagnosis
Condition type &V1&is assigned to the contract or object. However, thiscondition type does not belong to condition group &V2&.

System Response
You specify in Customizing whichcondition types belong to which condition groups.
In addition, a condition group is assigned to thecontract type andusage type.
All conditions for a contract, offer or rental object must be assignedto the appropriate condition group.

Procedure
In the application, it is not possible to assign conditions belonging tothe wrong group. Therefore, the invalid condition was probably assignedautomatically by a customer exit or generated by a migration program.
If it is really necessary for the condition to be entered in this way,then you have to assign the condition type to the condition group inCustomizing.
If the condition does not belong to this object, ask your systemadministrator to change the program that generated the condition.