SRM 4.0 (with SRM Server 5.0) ---- XI 3.0-------R/3

Hello Friends

Iam also working in SRM. I want to integrate SRM and XI for sending a PO from SRM to third party system through XI. I already have a PO created in SRM and I want to send it through XI to Third party system and then want to create corresponding Sales Order in that system.

We are using SRM 4.0(with SRM Server5.0)and XI 3.0.

Thanks in Advance........