Message Oracle ORA-36621 - (XSAGMODDIM02) You cannot AGGREGATE the individual partition using static model workspace object because a partition dimension or its deriver workspace object appears in the equation of the step or simultaneous block.

ERROR(XSAGMODDIM02) You cannot AGGREGATE the individual partition using static model workspace object because a partition dimension or its deriver workspace object appears in the equation of the step or simultaneous block.
CAUSEAn attempt was made to AGGREGATE the individual partition using the static model with the partition dimension in the equation of the step or simultaneous block.
ACTIONAGGREGATE the variable instead of the individual partition.