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How to build custom service that return bad request if it's not success

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Posted on by CU15021230-0

I build custom service that handle the response if it's valid or not using json object but I can't set status code to 400 if it's not valid as a bad request how can I solve it ??

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Martin Dráb 237,965 Most Valuable Professional on at

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Which D365 product are you using? The D365 brand covers quite a few things, such as Finance and Operations, Business Central or Customer Engagement. There are custom services in F&O, but maybe another D365 product has a feature of the same name.

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CU15021230-0 16 on at

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In D365F&O

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Martin Dráb 237,965 Most Valuable Professional on at

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Moved from Integration, Dataverse, and general topics forum.

When you're developing a custom service, you don't directly control HTTP status codes. The operation can either end successfully (returning 200) or throw an exception (returning 500, I believe). That's it. (Of course, F&O can return other status code if can't call you operation at all, such as 403.)

What you could do is calling your custom service through an Azure API Management (or something similar), where you'll analyze the response and return 400 if your criteria are met. For example, your custom service could return a response (200) with a data contract object saying in a status field that it's a failed validation. In API management, you'll check the response and if the status field indicates a validation failure, you'll change the HTTP status code to 400. Or you could throw an exception and analyze the error message in API Management.

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Anthony Blake 2,963 Super User 2025 Season 2 on at

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Hi,

I've implemented this in projects previously using API Management as suggested by Martin, and can confirm it works great.

Anthony

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