intercompany sale transaction

Hi all

I am working with intercompany sale transaction and i am having an error

My org structure is c.c 1573 sales org 0003 d.c 04 div 00 plant 1002

Another org strcture is 1574 sales org 0009 d.c 09 div 00 plant is 1006

Customer 70000101 in sales area 0003,04,00

Customer 70000102 in sales area 0009,09,00

Material X is maintained for both the plants and stock is kept only in plant 1006 assigned c.c1574

Now i enter an order for material x from Customer 70000101 in sales area 0003,04,00 assigngned to c.c1573

I have done all settings

I am able to create delivery from plant 1006 assigned to c.c1574 and bill this customer f2 bill from my sales org 0003

Pricing procedue is RVAA01

Now comes my problem

I am able to create a inter company billing based on only the customers inv as referance that is billing doc

When i try to create inter company billing based on delivery it throwing an error as sales org not defined

And also in the intercompany inv created the header is 70000101 and not the sales org 0003 and pricing procedure also RVAA01 and not ICAA01

What is that i am missing in customizing

Raja