My company is using Sage 50 Quantum Accounting 2016.  We started setting up some final products as assemblies.  The BOM for these top level assemblies is comprised of sub-assemblies and these sub-assemblies are in turn made of their own assemblies.  For example say product A is made of B & C and say B is an assembly that's made of D & E.  We have created stocked item numbers for A, B, C, D, & E.  We receive raw stock into inventory and have enough of D & E to build B.  We also have enough of C to build A.  However, when we try to build A, Peachtree says that there is insufficient stock of B even though there is enough of D & E to build B. 

How can we make Peachtree pull the needed stock and automatically build sub-assemblies?  This is a basic example, but our product actually has 200+ parts spread over 20+ sub-assemblies.  It would be too cumbersome to have to manually build every sub-assembly for each unit shipped.

Any help would be greatly appreciated!