*** Pending a 2nd edition coming soon, this Edition will no longer be available *** Please see sparebrained.com for more updates. This book is meant to be not only an introduction but a powerful companion to the official documentation for anyone who has a need to rely on the Microsoft Dynamics 365 Business Central API v2.0. This book is meant for two main audiences: Business Central Users and Advocates If you are a user, consultant, or developer working with Business Central, this book is hopefully useful to you as a guide to what parts of the system are accessible via API. Ideally, it will also make it easier to understand what each part of the API maps to the inside of Business Central. Non-Business Central Developers If you are a developer or organization that has been tasked with integrating with or building against the Business Central API, this book will help you understand what the options are in a single, unified place. It will also help you communicate more effectively with Business Central users about what you are creating. Key Features Overview Introduction to core HTTP calls, URIs, and commonly needed knowledge - A deep dive into OAuth Authentication - API v2.0 Endpoint by Endpoint information, including example calls and results, which actions are supported, and more - A guided mapping through the Sales & Purchase Document Aggregate system, including explanations of all the Status fields - Step-by-step clarification on Attachment, Picture, and PDF Document endpoints Clear JSON to Business Central mapping, both Business Central Page/Report to Endpoint, as well as field-by-field maps, providing a powerful tool in requirements planning - Essential Explanations of what restrictions can be found on some endpoints - Critical understanding of the history of the AVI v2.0, including noting what versions of Business Central received what changes "Now, for the typical AL developer, the development and consumption of APIs are likely not something everyone regularly does. In this book, Jeremy, Philip and AJ try to bridge the gap between the consumer need for APIs and the developers. You will learn about the basics of web services and the APIs that are available out-of-the-box in Business Central. [...] This book should be in the local library for any serious Business Central partner practice out there." -- Excerpt from the Foreword by Kennie Nybo Pontoppidan, Principal Program Manager, Microsoft