Forward Agent in Sales Order

Hi,

In partner function i copied the forward agent FA and created BD.

In sales order creation stage i keyed in BD-1000 (1000 is the vendor) as partner

In VL10G.

In the forward agent field ,in keyed in 1000 and executed i could not get the order number from list.

Latter i created a sales order,in the partner function i keyed in FA as 1000 (Vendor)

In VL10G

In the forward agent field ,in keyed in 1000 and executed i could get the order number from list.

Here arises the doubt ,whether partner function FA is hard coded as Forward agent. Because partner function corresponding to BD is not coming in VL10G.