With this chapter, we end our quest exploring the production and trade functionality around the items in Microsoft Dynamics NAV. We discussed the application design of sales and purchase documents in Microsoft Dynamics NAV and how they are mirrored. We talked about the different document types and how they work together from quote or blanket order to order, and invoice or return order, and credit memo.

The sales and purchase line validation methodology helps us to calculate the pricing, inventory and VAT using a special structure of functions that is linked to the way end users create these lines.

Sales and purchase orders have a mandatory release process that can be extended with document approval and prepayments. The items have a two-layer inventory process using item ledger entries on locations and warehouse entries on bins and zones. We can use transfer orders to move items from one location to another and warehouse documents to move items from bin to bin and zone to zone. A warehouse is set up in the location and can have different levels. The setup level should match the physical process in the warehouse.

Item application and costing is tied together with the reservation process in Microsoft Dynamics NAV. The Reservation Entry table adds a new level to the inventory process linking documents, journals, and entries together to level supply and demand. When used, the reservation process can overrule the costing method.

At the end of the chapter, we talked about different ways to implement this in vertical solutions and what gaps would have to be solved and how. This demonstrates the flexibility and the power of the standard transaction structure in Microsoft Dynamics NAV.

In the next chapter, we will take this to a new level where we will design and build a real-world vertical solution for Microsoft Dynamics NAV that will enable us to create combine sales shipment in routes for trucks. We will also create a new solution on top of Microsoft Dynamics NAV using the application as a development environment to build something new with respect to the methodology of the application.