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API Integration Business Central Cloud with on-premises

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Posted on by Alzack

Hi!

I have 2 Business Central environments. One Cloud, the other On-premises. I would like to integrate data exchange between these two environments after API.

Calling the Cloud endpoint on the on-prem side is not a problem, but I wonder how to solve it the other way.

On both the Cloud and on-prem side, I have an API done on codeunit, which is exposed as a WebService.

How do I call the on-prem endpoint from the Cloud environment? I assume some sort of VPN will be needed here. Is there any solution via Azure or other Microsoft tools?

Best Regards

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Dynamics 365 Business Central

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KP - Solution Archi... 658 on at

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Hi

Use Self-hosted Gateway + Azure API Management
Install self-hosted gateway on-prem.

Register and manage APIs via Azure API Management.

Another Option

Use VPN or ExpressRoute
Set up a secure connection between Azure and on-prem.

Host a middleware (e.g., Azure Function) that accesses on-prem directly.

Thanks,

KP

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Padmavathy 124 on at

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Power Automate can be used to integrate data between on-premises and cloud Business Central environments. It enables secure communication and data exchange by connecting to on-premises APIs using a gateway.

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YUN ZHU 99,055 Super User 2026 Season 1 on at

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Hi, In addition, there is a similar standard function that can synchronize On-Pre and SaaS data, which I hope can also give you some hints.

Dynamics 365 Business Central: How to migrate On-Premises Data to Cloud (SaaS)

https://yzhums.com/6646/

Thanks.

ZHU

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Sohail Ahmed 11,169 Super User 2026 Season 1 on at

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To integrate the Business Central API between its online (cloud) and on-premises versions, you'll typically use the Business Central REST API and potentially Power Automate or other integration tools. This allows for secure communication and data exchange between the two environments.

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Khushbu Rajvi. 22,128 Super User 2026 Season 1 on at

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Hope this helps: https://learn.microsoft.com/en-us/dynamics365/business-central/dev-itpro/api-reference/v2.0/enabling-apis-for-dynamics-nav

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