Hi Srini:
Thanks for sharing your question with the community. I reached out to our team with the Best Practice Center for guidance since this relates to implementation. Sharon or another member of the team will provide a detailed response to your question at this discussion thread. Some of the team members are out of the office, so there may be a slight delay in their reply.
In the meantime, it will be interesting to see if other Ariba users offer their insights to the question you have shared.
Regards,
Debbie Curtis-Magley
Ariba Exchange Community Manager