Microsoft Dynamics NAV has some specific data model principles that are very important to understand before you can create your own structure. The building blocks are layered and reused and rely on each other in order to secure data integrity.
The data model starts with master data. There are three types or levels of master data. They are all used in transactions. We differentiate helpers, core, and umbrella master data.
Examples of helper master data are Currencies, Locations, and Payment terms. They often do not use a number series but allow us to create our own unique codes.
Examples of core master data are G/L Accounts, Customers, Vendors, Items, Resources, and Fixed assets. They are numbered using number series ...