In this chapter, we saw that Dynamics NAV offers many configuration options and workarounds that we should use before starting to write our own code. If you need to write customized code, it is important to do it following the same structure as the standard application, to avoid confusing the users. The structures of the tables and the pages are the most important ones, and we've seen them in depth.

The posting process, or posting routines, are the ones in charge of creating historical documents and entries. If you need to modify them, you have to be careful and know what you are doing. That's why we have explained the main idea of posting routines. Last but not least, we saw where and how to write customized code on the Dynamics NAV objects.

In the following chapters, we will see how to implement functional changes on existing and running Dynamics NAV implementations.