Partner Roles in Vendor Master

Hello Dear Friends

In Vendor Master data, in Purchasing Orgnzation data there are tow areas 1) Purchasing data and 2) Partner functions.

I would like to know briefly about partner functions, I have gone through some infomration links even I am having come clarifications.

There are partner fiunctions VN - Vendors, IP - Invoice Presented by, AD - Additionals, OA - Ordering Address, FA - Forwarding agent and GS - Goods Supplier.

Could u please explain how to use / in what situation with an example please.

Best Regards,

Vijayakumar TVN