Exception- Onhand qty without locator for locator controlled subinv

UPDATE apps.MTL_ONHAND_QUANTITIES_DETAIL

set locator_id = (select inventory_location_id

 from mtl_item_locations_kfv

where concatenated_segments = 'CSKEN.000.00.00')

where organization_id = 87 -- ORGANIZATION_ID

and inventory_item_id in (select inventory_item_id

from APPS.mtl_system_items

where organization_id = 86

and segment1 in ('815662000PE')) --ITEM_NUMBER

and subinventory_code='CSKEN' -- SUBINVENTORY_CODE

and locator_id is null;