"Chief purchasing agent" validating branches orders

[Jospin]

Hi all, I'm building a B2B site and I would need a contribution that allows this:

- the customer is a company with several branches

- each branch has its own account with the B2B site

- when a branch places an order, the chief purchasing agent of the company receives an e-mail and is able to change, cancel or validate the order.

Is there such a contribution and/or is it possible in oscommerce?

(of course I know I can send the e-mail manually :) )