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Dynamics 365 Community / Forums / Small and medium business | Business Central, N... / Call an externel WebSe...
Small and medium business | Business Central, N...
Suggested Answer

Call an externel WebService

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Posted on by Ilyes Ben Jaoued 18

Hello,

I'm working on a Business Central SaaS environment and I'm trying to consume an external web service using the HttpClient data type in AL. However, I'm encountering the following error when executing the HTTP request:

"An error occurred while executing the HTTP request. Make sure you are connecting to a valid endpoint."

 

I've confirmed that the endpoint URL is correct and accessible via browser/Postman, Is there any additional configuration required in BC SaaS for HttpClient calls? Could this be related to certificate validation, or https requested?

Thanks in advance for your help!

Capture d'écran 2025-05-15 125129.png
Categories:
Dynamics 365 Business Central
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  • Suggested answer
    Sohail Ahmed Profile Picture
    Sohail Ahmed 11,169 Super User 2026 Season 1 on at

    This error can sometimes occur even if the endpoint works in a browser or Postman. A few things to double-check:

    ✅ Handle all headers and authentication properly. If the service requires API keys or other custom headers, make sure they're correctly set in your HttpRequestMessage. Missing or incorrect headers can cause silent failures.

     

    ✅ Log the full response content for more insight. Even if the call fails, check HttpResponseMessage.IsSuccessStatusCode() and read the content using Response.Content.ReadAsString() to see if the service is returning a more detailed error message.

    If you're still having trouble, feel free to share a snippet of your AL code and the request/response details (with sensitive info removed), and I’ll be happy to help you debug it further.

     

    procedure CallExternalService()
var
    Client: HttpClient;
    Request: HttpRequestMessage;
    Response: HttpResponseMessage;
    Content: Text;
begin
    // Prepare the request
    Request.SetRequestUri('https://api.example.com/data');
    Request.Method := 'GET';

    // Add custom headers (e.g., API key)
    Request.GetHeaders().Add('Authorization', 'Bearer YOUR_API_KEY_HERE');
    Request.GetHeaders().Add('Accept', 'application/json');

    // Send the request
    if Client.Send(Request, Response) then begin
        // Check if the response was successful
        if Response.IsSuccessStatusCode() then begin
            Response.Content().ReadAs(Content);
            Message('Success: %1', Content);
        end else begin
            Response.Content().ReadAs(Content);
            Message('Failed. Status: %1 - %2', Response.HttpStatusCode(),
end;
     
  • Suggested answer
    YUN ZHU Profile Picture
    YUN ZHU 99,742 Super User 2026 Season 1 on at
  • Suggested answer
    RockwithNav Profile Picture
    RockwithNav 9,061 Super User 2026 Season 1 on at
    This issue typically occurs when the endpoint URL is incorrect or incomplete. However, since you're able to trigger the request successfully in Postman, we can rule that out. Another possible cause could be the authentication token being generated on the Business Central side — try validating that.
     
     
  • Ilyes Ben Jaoued Profile Picture
    Ilyes Ben Jaoued 18 on at
    The issue involves a simple POST request that requires a JSON payload in the body. You can see the screenshot below.
     
     
     
  • Suggested answer
    KP - Solution Architect Technical Profile Picture
    KP - Solution Archi... 658 on at
     
    Can you check the authorization method in the AL code.
     
     
     
    Thanks,
    KP
  • Rick Folkner Profile Picture
    Rick Folkner 21 on at
    I'm getting the same error this morning, was working fine yesterday.  Seemed to happen after BC updated to v26 last night.  Did Microsoft change something in the http client in 26?
  • Rick Folkner Profile Picture
    Rick Folkner 21 on at
    I figured out my issue with this.  in BC26 they added a feature that forces certificate validation on htttpclient calls.  My issue was the certificate on the API Server had an issue so it wasn't validating. 
     
    Here is a link to the Microsoft documentation. 
     
     
    Thanks,
  • Suggested answer
    Khushbu Rajvi. Profile Picture
    Khushbu Rajvi. 22,283 Super User 2026 Season 1 on at

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