Exam MCD-Level-1 Topic 8 Question 189 Discussion

Actual exam question for MuleSoft's MCD-Level-1 exam
Question #: 189
Topic #: 8
Refer to the exhibit.


The main flow is configured with their error handlers. A web client submit a request to the HTTP Listener and the HTTP Request throws an HTTP:NOT_FOUND error.
What response message is returned?''
What response message is returned?

Suggested Answer: A Vote an answer

Correct answer is APP: API RESOURCE NOT FOUND
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1) A web client submits the request to the HTTP Listener.
2) The HTTP Request throws an "HTTP:NOT_FOUND" error, execution halts.
3) The On Error Propagate error Handler handles the error. In this case ,HTTP:NOT_FOUND error is mapped to custom error APP:API_RESOURCE_NOT_FOUND. This error processor sets payload to APP:API_RESOURCE_NOT_FOUND.
4) "APP:API_RESOURCE_NOT_FOUND. " is the error message returned to the requestor in the body of the HTTP request with HTTP Status Code: 500 Reference Diagram:

by Steven at Jun 15, 2026, 11:59 PM

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