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Need help: X++ service returns metadata, not worker data

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Posted on by CU03061204-0

Hello everyone,

I’m currently working on a Dynamics 365 Finance & Operations (X++) project, and I’m trying to create a Custom Service (API) to display employee data from the HcmWorker table.

I’ve already created the necessary classes (EmpWorkerContract and EmpWorkerService), the service, and the service group — everything builds and deploys successfully.

However, when I test the API from Postman, instead of getting actual worker data, the response only shows the service metadata (the parameter and return type information).

Could someone please explain why this happens and how I can fix it so the API returns the actual data in JSON format?

The class code is attached :

EmpWorkerContract

EmpWorkerService

Thank you!

Categories:

Dynamics 365 Finance

Dynamics 365 Project Service Automation

Dynamics 365 Human Resources

Dynamics 365 Project Operations

Dynamics 365 Intelligent Order Management

EmpWorkerService.txt

EmpWorkerContract...

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Layan Jwei 8,040 Super User 2025 Season 2 on at

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Need help: X++ service returns metadata, not worker data

Hi,

How do you call the custom service via postman? can you show us the url please in addition to the body

the url in postman should be like this:
YourEnvironmentUrl/api/services/YourServiceGroupName/YourServiceName/YourServiceMethod

I only know your service name and your service method, therefore you will need to replace the ones in bold with ur data
YourEnvironmentUrl/api/services/YourServiceGroupName/EmpWorkerService/getWorkers

Thanks,
Layan Jweihan
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Layan Jwei 8,040 Super User 2025 Season 2 on at

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Need help: X++ service returns metadata, not worker data

Also please replace your method attributes with this

[AifCollectionTypeAttribute('return', Types::Class, classStr(EmpWorkerContract))]
public List getWorkers(int _top = 50)

{

}

Thanks,
Layan Jweihan
Please mark this answer as "Verified" if it solved your issue. In order to help others who will face a similar issue in the future.

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Martin Dráb 236,334 Most Valuable Professional on at

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Need help: X++ service returns metadata, not worker data

This is what you get when you send a GET request. To execute the service, use a POST request instead.

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