Custom basic API on Premise, not detected after deploy

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Posted on by Bilal Fazrin

Hello,

I am currently learning to use API on BC On-prem,
I've followed the guide from this link https://learn.microsoft.com/en-us/dynamics365/business-central/dev-itpro/developer/devenv-develop-custom-api
I even use the same objectname and and field. But I cannot get the respon from postman.
I can call the standard API, but not the custom one.

I already check on table Metadata it's already listed there but I still unable to call it.
////

Is there any step that I missed?

**SOLVED Thank you ZHU.

Turned out the root cause is because the request URI missing API publisher and API group.
Missed it because I did comparing with the standard API which didn't not use the them.

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Dynamics 365 Business Central

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Suggested answer

Shrey Chauhan 284 on at

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Custom basic API on Premise, not detected after deploy

Hello,

To get the data of the Custom API :
Step-1 : Create the web service of your page.
Step-2 : Copy the Odata URL.
Step-3 : Use the NTLM Authentication in PostMan.
Step-4 : Use the UserName and Password of your PC.
Step-5 : And get the data.

Hope this help's you.
May other experts give's you better solution's.

Thank You,
Shrey Chauhan.

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Verified answer

YUN ZHU 94,359 Super User 2025 Season 2 on at

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Custom basic API on Premise, not detected after deploy

It seems that there is a problem with your endpoint. Your endpoint does not contain the new publisher and api group you defined in the code.

For example, https://api.businesscentral.dynamics.com/v2.0/d8f36038-1f93-4543-affc-5dc92b6ee871/Sandbox221/api/zy/zygroup/v2.0/companies(25333785-59e9-ed11-884d-6045bde998ec)/zysalesOrders(074a2f20-e40f-ee11-8f6e-6045bd67d775)/Microsoft.NAV.ship

Hope this helps.

Thanks.

ZHU

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