Authorization object in Campaign Status

Hi all,

I would like to know if there is an authorization object that can be used so as to restrict users from selecting certain statuses for the campaign.

To give an example, i want to provide a user with the authority to release a campaign, and another user the authority to approve it.

I have tried the BADI CRM_MKTPL, but it is not working for SAP CRM 6.0 (WebClient UI)