Authorisation Check on C_KLAH_BKL not occuring with XD03

Hi,

We are trying to restrict display access to certain classes assigned to a customer via the XD03 transaction.  We are maintaining the authorisation group field in CL02 for the Class (BGRKL).  I have added the object C_KLAH_BKL to the transaction in SU22, but when testing with a role with a specific authorisation group assigned it makes no differents and all classes/details for the customer can be displayed.

I ran a trace on the user and on the analysis the C_KLAH_BKL object is not checked.

Any throughts/solutons?

Thanka.