SAP Message AP041 - Choose a valid row

Diagnosis
You tried to create the investment program position &V2& assubordinate to, or at the same level as program position &V4&.However, this is only allowed if both positions belong to the samecontrolling area.
The position &V4& belongs to the controlling area &V3&. However, youhave assigned controlling area &V1& to the new position &V2& that youare creating.

System Response
Controlling area &V1& is ignored. The system usescontrolling area &V3&.