SAP TM Change logs

Hi All,

I am working on SAP transportation management (TM) system which uses NWBC. All end users access NWBC and perform various transactions like Create Booking, Change Booking etc.

Change logs are not being captured in any of the change tables (CDHDR and CDPOS). I browsed in google and came across concept called Context Log Changes for Webdynpro applications.

https://help.sap.com/saphelp_nw70ehp1/helpdata/en/17/023e63ac50439e83d4ed8573df0938/content.htm?frameset=/en/47/af752005c92fe1e10000000a42189d/frameset.htm

I have executed the demo existing in my system and demo shows that the whatever changes being done by the users in NWBC can be captured using this context change logs.

We are looking to implement this for our project, but before that we have few queries.

1. Where do these context logs gets stored if i enable them?

2. Our TM system is being integrated with GRC system, so if the change logs gets recorded in change tables (CDHDR and CDPOS), GRC can read them.

3. Does this show any performance issues for our system if enabled?

Experts please suggest.

Thanks,

Sai.