Hello Purav
I can confirm that the issue described in KBA 1833951 is resolved in BI4.0 Support Pack 7 and also BI 4.1 Support Pack 2 (when it's released).
This is sadly a problem for all versions of BI4.0 prior to SP7. The root cause is deep down in a Java SDK. Due to the impact of correcting this it took a lot of testing to validate everything was ok. Sadly this meant we had to deliver this in a Support Pack and not sooner in a patch for example.
If you've not yet found the Wiki on Promotion Management, its worth bookmarking! Go to
http://wiki.scn.sap.com/wiki/x/QofBEgand investigate the 5 child pages.
Regards
Matthew