Suppose a national supplier with many outlets across the country. The head office is created in OpenERP as a company. We get all our invoices from them and we send our checks to them. Under this company, there are outlets in different cities. They are not "is a company". One outlet sells product A. One outlet sells product B. We send our purchase order to the source outlet for the desired product.

It's important that each outlet is "not a company" in order to account for all invoices as being owed to a single company.

How can I set it up so that the purchaser knows where to send the PO?