Hello Sastry,
I cannot answer that question exactly, because it was a requirement of the customer...
Like you say: If you CIF the data you are getting only ERP data from the system.
So obviously, the warehouse product-data is missing, but according to the spec's it is required.
( I do not know which eWM process uses the warehouse product-data...)
So to save some time doing Master Data maintenance in eWM afterwards, this option of extending the CIF-interface was chosen..
Btw., there are a lot SCN-forums discussing this subject, so this is a 'common'' requirement.
reg., Walter.