What are the Differnt Line Status in B2B Order in Oracle Application.

In Oracle Application , when we Create B2B (back 2 back) Order Line, it’s inital status is
ENTERED.
Once we book it become PO_REQ_REQUESTED.
On execution of Requisition Import , it will be PO_REQ_CREATED.
On execution of Auto Create , once PO created and approve , it become PO_CREATED.
Once we receive against PO , it become  
PO_RECEIVED and then  
Awaiting Shipping , Shipped & finally Closed.

IMPORTANT 
In R12 , Oracle has Introduced New flow Status code for B2B Orders.Below are the details of New Flow Sttaus code for B2B Orders in R12 On wards.


EXTERNAL_REQ_OPEN
EXTERNAL_REQ_PARTIAL
EXTERNAL_REQ_REQUESTED
PO_REQ_CREATED
PO_REQ_REQUESTED