Thanks Steve, that is what I have experienced.Unfortunatly this is problematic. The master item assembly is triggered when the invoice is generated leaving the sub assembled components in a negative until they are manually handled.
In our business, the sub-assembled pieces are usually pretty simple with some raw material and labour allocated to them.
I have seen other ERPs auto build components of a Master Item that require assembly. Basically the ERP knows that if a component is not in stock and it is an item that requires assembly, then it will build it before satisfying the assembly of the Master item upon the the invoicing.