SAP Message AP037 - Error - different controlling areas

Diagnosis
You tried to enter the capital investment program position &V4& assubordinate to, or at the same level as program position &V2&.However, this is only allowed if both positions belong to the samecontrolling area. However, position &V4& belongs to controlling areaV3 and position v2 belongs to controlling area v1.

System Response
The system does not allow the entry.