Exclusion & listing user change log

Hi All,

Where do I find the user change log of listing & exclusion?

Issue:-

1. In VB02 transaction code user has changed the end date & tried to find the user change log but I couldn't find anywhere. I checke  in the tables KOTG* & “CDHDR” tables even in this tables I didn’t get which user has changed that end date.
2. Listing and exclusion change log is there in standard SAP? If it is not there how/where we can active or development logic.

Please help us to resolve the above issue.

Thanks

Kumar

Message was edited by: Kumar