Oracle Message ORA-14276 - EXCHANGE SUBPARTITION requires a non-partitioned, non-clustered table

ERROREXCHANGE SUBPARTITION requires a non-partitioned, non-clustered table
CAUSEThe table in the ALTER TABLE EXCHANGE SUBPARTITION operation is either clustered or partitioned
ACTIONEnsure that the table with which the subpartition is being exchanged for is not partitioned or clustered.