SAP security - changing check maintain setting for security objects

I am trying to change the check maintain indicator for a couple of transactions

to alow me to manage access based on security objects that are not currently defined as check maintain. Specifically, I have updated the check indicator

(using SU24) to check maintain for object c_stue_ber on transactions MD11 and MD12 (planned order create/change). The transactions still do not check this object as expected. Does anything else need to be done to enable checking an

object that is not set up as check maintain originally?

Any help is appreciated.


Doug Scott