@JayRam, What you think would be best approaches for the combinations you mentioned.
to be specific in let me take the case of one of our product categories: we make mechanical structures based on customer specifications which are unique to each order. That way you may call it more like a engineered-to-order.
Is there just one Made to Order Item - like say a project that gets delivered for the client?
Mostly, 1 but some times Invoice items could be in
sets of these unique-to-individual purchase order items. Yes mostly we treat them like a project.
Or are there a whole bunch of items that are all Made to Order?
not whole bunch of items
What are the Invoice Items? How does the client expect the items to be invoiced?
those made to order items and some accessories. Client expect as per the purchase order which contains the specification of unique made to order item.
Is it enough for you to get Project P&L? Or do you need valuations of each Made to Order item?
valuations of each
What you suggest @JayRam