SAP Message UPX123 - Assign only planning areas with the same BW to the multi-planning area

MESS SHORT TEXT: Only assign planning areas with the same BW to the the multi-planning area Diagnosis In Sales Planning, you are trying to use a multi-planning area withbasic planning areas that are connected to different BW systems. System Response Sales planning cannot be performed. Procedure Ensure that all basic planning areas for the multi-planning area areconnected to the same SAP BW, or use one basic planning area for salesplanning.