That structure is very straightforward. I have used structures like that (and much more complex than that) successfully in Mendix. Is the REST service public? If so, can you share the endpoint URL? Also, have you run this with debug and examined the detailed response that comes back from the REST service?
Thanks for your message. Thuy and I are working on this issue together.
Please find below the error message which we are getting from the Debugger.
Under HttpResponse, the content appears to be "Empty", making it difficult for us to locate the issue.
Please let us know your thought?
Also just add to above, the Response from this POST Call is also coming back as empty
Is that the request structure or the response structure?
Are you using export mapping for the body and import mapping on the response?