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AL Code for Integration between Business Central and External Sales System via API

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Posted on by Lama Khaled

Hello,

I'm looking for some guidance on how to write AL code in Visual Studio Code to establish a continuous integration between Microsoft Dynamics 365 Business Central and an external sales system via API.

Specifically, I want to achieve the following:

Retrieve customers and sales invoices created in the external sales system and import them into Business Central.
Continuously synchronize item details from Business Central to the external sales system.

Most examples I've come across online demonstrate integration using Postman, but I'm specifically interested in implementing this functionality using AL code in Visual Studio Code.

I would greatly appreciate any advice, tips, or resources that can help me accomplish this task efficiently.

Thank you in advance for your assistance!

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Dynamics 365 Business Central

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Gerardo Rentería Ga... 25,555 Most Valuable Professional on at

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Hi

I hope this can help you. And give you some hints. Extending standard APIs (2) – Kauffmann @ Dynamics 365 Business Central

BR

GR

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Lama Khaled 12 on at

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Hi,
Thanks, gdrenteria for your reply but I need the basic steps to start creating AL code for the connection between BC and the second system, the URL for the document you sent has a complicated way that isn't useful for me because I'm a beginner can you advise?

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YUN ZHU 99,086 Super User 2026 Season 1 on at

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Hi, you can search for the "HttpClient data type" keyword and you should be able to find a lot of learning materials.

For example,

Call external services with the HttpClient data type

https://learn.microsoft.com/en-us/dynamics365/business-central/dev-itpro/developer/devenv-httpclient?wt.mc_id=DX-MVP-5004336

Hope this helps.

Thanks.

ZHU

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Lama Khaled 12 on at

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@YUN ZHU

Hi Mrs,

Thanks for your advice on using HTTP data type, I searched and found about this but I need to use AuthO type to use secret ID and token, and how I make an integration between an Outside system with Business Central to get and post data between them, how I can apply the mapping between them, I need example code if you can ? I apprsieated your effort but I need someone to give me the light of the road in this matter because I am a beginner and first time I will do that

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CU16041327-0 12 on at

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@Lama Khaled Where you able to do the integration? Because I'm also a beginner and i want to learn.

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Khushbu Rajvi. 22,130 Super User 2026 Season 1 on at

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Hope this helps:https://www.youtube.com/watch?v=d0Ht3dlpzhc

https://learn.microsoft.com/en-us/dynamics365/business-central/dev-itpro/developer/integration-overview

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Jainam M. Kothari 15,803 Super User 2026 Season 1 on at

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May this can help : https://learn.microsoft.com/en-us/dynamics365/business-central/dev-itpro/developer/devenv-develop-custom-api

https://learn.microsoft.com/en-us/dynamics365/business-central/dev-itpro/developer/devenv-get-started

https://learn.microsoft.com/en-us/dynamics365/business-central/shopify/synchronize-items

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Matteo Fiocco 260 on at

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Hi Lama,

You can achieve this using AL with HttpClient and scheduled Codeunits. For importing customers and sales invoices, create a Codeunit that makes GET requests to the external API and maps the JSON response to BC records. For item sync, use a similar Codeunit with POST/PUT requests to push updates.

Set up Job Queue Entries to run these Codeunits on a schedule for continuous sync. Make sure to handle auth (e.g., Bearer token) via request headers.

Let me know if you need a sample structure!

Cheers,

Matteo

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Gerardo Rentería Ga... 25,555 Most Valuable Professional on at

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Hi, good day
I hope this can help you, and give you some hints.

https://businesscentralgeek.com/how-to-connect-to-external-apis-from-business-central-http-request

https://fredborg.org/?p=973

https://learn.microsoft.com/en-us/dynamics365/business-central/dev-itpro/developer/devenv-httpclient?wt.mc_id=MVP_354389

Best Regards
Gerardo

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