Planning area activation error in S&OP

Hi All,

I am getting following error during activation of my newly created planning area in SAP S&OP.

Could you please have a look and advice:

Exception raised from  InternalError: dberror(CallableStatement.execute): 256 - transaction rolled back by an internal error:  [256] SAP_SFND.sap.sop.sopfnd.catalogue::SOPDM_ACTIVATEPLAREA: line 898 col 2 (at pos 8757): [256] (range 3): transaction rolled back by an internal error: transaction rolled back by an internal error:  [256] SAP_SFND.sap.sop.sopfnd.catalogue::SOPDM_PLANSESSION_XML_CNSTR: line 1274 col 2 (at pos 8682): [256] (range 3): transaction rolled back by an internal error: transaction rolled back by an internal error:  [256] SAP_SFND.sap.sop.sopfnd.catalogue::SOPDM_PLANSESSION_TABLE_CNSTR: line 125 col 2 (at pos 6123): [256] (range 3): transaction rolled back by an internal error: duplicate column name: T99CUSTDESCR: line 1 col 351 (at pos 350) at ptime/query/plan_executor/trex_wrapper/trex_wrapper_body/trex_query.cc:808

Regards,

Suprio