Report for delivered but not billed orders

Hi All,

I am trying to build a query using logical database to extract all orders for which delivery has been done, but not yet billed. I believe i can extract this data using VAV logical database, but not quite sure if i should use VAV or VFV.

Can someone let me know, which database to use & also what input conditions i need to maintain to extract only the information which i am looking for?

Hope my question is clear, await inputs.

Vivek