A couple of our customers would like to have a quick answer over the phone on how many products (defined as a BOM) they can purchase based on our current stock levels. Is there an easy way to query this with Open ERP so the customer can receive an anwer right away?

We have several products and all have their individual BOM. I would like to know whether my current stock levels allow me to build BOM1 four times, BOM3 two times and BOM7 one time. In case no, I would like to know which parts we would need to buy in when a PO arrives in order to fulfil the customer request.