query based alerts

Hi All,

Like every company we have a situation where we buy item a and item b individually but sell as sets or stand alone as the customer requires. A major problem we have in our current system (not SAP B1) is that the min-max would never trip since it would consider the CURRENT / LIVE / OPEN Purchase orders.

I want to set up a query based alert which tells me to

1) buy item b every time I buy item a, and the quantity should be at least same or more.

2) trip min-max keeping in mind that we need as many item b as the quantity of item a + a buffer stock quantity decided by us.

Any guidance?

Thanks!!

Regards,

YP.