Hi Nabendu,
I am still working with "DCUsage.com" as per your blog. Only concern I have this to make the namespace unique, otherwise if 2nd message comes before completion of the first, it would be messed up.
Sorry, I am not sure if I have understood your point. I hope each synchronous message is independent (transaction) and hence having a fixed namespace for custom DC shouldn't be an issue
Best Regards,
Praveen Gujjeti