Business Central includes an extensive set of software development tools. The Business Central development tools are accessed through Visual Studio Code. Visual Studio Code includes the Application Language (AL) compiler extension. All Business Central programming uses AL.
When used on premises, the old development environment C/SIDE can also be used for development. To learn C/SIDE, refer to the following book: Programming Microsoft Dynamics NAV, 2017. The use of C/SIDE for Business Central development is discouraged by Microsoft.
The Visual Studio Code IDE is Microsoft's most popular code editor and is available for Windows, Linux, and macOS. The images used in this book will be from Windows. You can download Visual Studio Code from https://code.visualstudio.com/: