Hi Ashish,
if you need something urgent, you can build it. Right now we don't provide standard integration content. We hope it will be released later this year. There are other workarounds:
* You can use the mass maintenance tool to download/upload in C4C
* you can use data migration to bring data over
* You can build something in the B1 integration framework
It's not that it's not possible, it 's just that SAP doesn't provide any standard integration content. We are developing it now. Whatever you decide to build, just keep in mind we will have something coming in the future. Our focus is on business partners and external pricing for quotes.
Hope this helps.
Ginger