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You have a SOAP API call that fails due to incorrect message format. What is the most likely cause?

medium📝 Debug Q14 of 15
Rest API - REST API Fundamentals
You have a SOAP API call that fails due to incorrect message format. What is the most likely cause?
AUsing GraphQL query syntax in the request
BMissing HTTP GET method in the request
CUsing JSON instead of XML in the request body
DNot specifying the resource URL correctly
Step-by-Step Solution
Solution:

  1. Step 1: Understand SOAP message format requirements

    SOAP requires XML formatted messages strictly following its schema.

  2. Step 2: Identify common format errors

    Sending JSON instead of XML breaks the SOAP message format, causing failure.

  3. Final Answer:

    Using JSON instead of XML in the request body -> Option C

  4. Quick Check:

    SOAP needs XML, not JSON [OK]
Quick Trick: SOAP messages must be XML formatted [OK]
Common Mistakes:
MISTAKES
  • Using JSON payloads with SOAP
  • Confusing HTTP methods for SOAP
  • Mixing GraphQL syntax with SOAP

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