CATS0005 EXIT NOT TRIGGERED FROM CAT2 TRANSACTION

Hi,

I have added a new field(WBS Description) in CI_CATSDB include and made SPRO config to include the added field in Worklist and Data entry selection.
I have implemented Exit CATS005 but it is not getting triggered to display WBS description when i execute CAT2 transaction this exit is not getiing called at all. Can u please help out.