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How to make port open for APIs

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Posted on by Rajaneesh H

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Hi ,

I am currently using on-premise business central APIs. I am able to access it inside the particular server. However the port which is being used in API URL needs to be accessed outside of the server. i.e., those who have username and password should be able to access it. How make port open?

Thanks

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Judy Microsoft Employee on at

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Hi Sir,

Business Central exposes an API that makes it possible to integrate with other services. To enable integration with these APIs, you must go through a few steps to enable APIs in Business Central.

Enabling APIs for Microsoft Dynamics NAV - Business Central | Microsoft Learn

Once you have the API access enabled, you can write code that integrates your web service or SaaS solution with Business Central.

Endpoints for the APIs for Microsoft Dynamics NAV and Microsoft Dynamics 365 Business Central - Business Central | Microsoft Learn

Best Regards,

Judy

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Rajaneesh H 244 on at

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Hi @Judy,

Thanks for the time and effort. However I have done these all steps. My question is that I am able to access it inside the particular server. However the port which is being used in API URL needs to be accessed outside of the server. i.e., those who have username and password should be able to access it. How make port open?

Thanks again.

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Judy Microsoft Employee on at

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Hi Rajaneesh,

Please check the useful Documents to see if it can help:

Set up inbound private endpoint for Azure API Management | Microsoft Learn

Port forwarding local services with VS Code (visualstudio.com)

Best Regards,

Judy

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Chavda Dharmendra 1,004 Super User 2026 Season 1 on at

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Hello Rajaneesh,

For the On-premise, we need to Open the port to access API from outside the server.

Open the port from "Firewall" and check.

If it's Azure then Open the port from network.

https://learn.microsoft.com/en-us/sql/reporting-services/report-server/configure-a-firewall-for-report-server-access?view=sql-server-ver16

Open firewall ports in Windows.
You can manually permit a program to access the internet by opening a firewall port. You will need to know what port it uses and the protocol to make this work.
Navigate to Control Panel, System and Security, and Windows Firewall.
Select Advanced settings and highlight Inbound Rules in the left pane.
Right-click Inbound Rules and select New Rule.
Add the port you need to open and click Next.
Add the protocol (TCP or UDP) and the port number into the next window and click Next.
Select Allow the connection in the next window and hit Next.
Select the network type as you see fit and click Next.
Name the rule something meaningful and click Finish.

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