SAP Message CC426 - Data for material and plant must not be in APO

Diagnosis
There is data in an APO system for at least onematerial orplant.

System Response
This data is not maintained in an APO system. Maintenance of this datamay take place in an SAP R/3 system, for example.

Procedure
Since this data is not maintained in an APO system, inform your systemadministrator.