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With Business Central you can create Connect apps. Connect apps establish a point-to-point connection between Dynamics 365 Business Central and a third party solution or service and is typically created using standard REST API to interchange data. Any coding language capable of calling REST APIs can be used to develop your Connect app. For more information to get started with Connect apps, see Developing connect apps for Dynamics 365 Business Central.
Tip
For inspiration and examples, see the open source ALAppExtensions repo. Here you'll find examples of API pages written in AL.
Before you start using the Business Central APIs, familiarize yourself with the Microsoft APIs Terms of Use.
Learn more about enabling APIs for Business Central in Enabling the APIs for Dynamics 365 Business Central.
Extending APIs with additional fields isn't currently possible in Business Central. If you need this, you must copy the AL code for the API and create a custom API based on that.
Learn more about transitioning from API v1.0 to API v2.0 in Transition from API v1.0 to API v2.0.
Microsoft APIs Terms of Use
Enabling the APIs for Dynamics 365 Business Central
Development in AL
Analyzing incoming web services request telemetry
Developing connect apps for Dynamics 365 Business Central
OpenAPI specification
Training
Module
Work with the API in Dynamics 365 Business Central - Training
Learn how to work with the API in Dynamics Business Central.
Certification
Microsoft Certified: Dynamics 365 Business Central Developer Associate - Certifications
Demonstrate you have the skills to design, develop, test, and maintain solutions based on Dynamics 365 Business Central.