Business Central opens a world of endless possibilities for custom business logic and functionality through extensions and customizations. For beginners in the AL language, navigating the vast landscape can feel overwhelming. It’s challenging to know where to start and what’s essential to learn. This updated edition offers a concise and well-organized guide, featuring hands-on exercises to support a successful learning journey. You’ll get to grips with the basics of Business Central and how to create your first Visual Studio Code project with the AL language. As you learn about the table data structure, simple and complex data types, relationships, validation, and data flow, you’ll be able to add and extend tables to your project. Progressively, you'll uncover the intricacies of user interfaces with pages, create advanced Excel report layouts, and harness the power of data queries. Immersing yourself in the AL language syntax, you’ll start with variables, methods, procedures, and statements. You'll explore advanced topics to create business logic such as FlowFields, filtering, CRUD methods, interactions between object types, and different API interfaces that can be created using the AL language. By the end of this book, you’ll be equipped to build fully featured, robust extensions and custom capabilities for Business Central.