How To Fix /IWFND/CM_MGW009 - Deserialization of XML failed via transformation '&1'

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWFND/CM_MGW -

• Message number: 009

• Message text: Deserialization of XML failed via transformation '&1'

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWFND/CM_MGW009 - Deserialization of XML failed via transformation '&1' ?

  The SAP error message /IWFND/CM_MGW009 indicates that there was a failure in deserializing XML data during the transformation process in an OData service. This typically occurs when the XML data being processed does not conform to the expected structure or format defined in the service.
  Causes:
  
  Malformed XML: The XML data being sent to the OData service may be incorrectly formatted, missing required elements, or have invalid characters.
  Schema Mismatch: The XML structure does not match the expected schema defined in the OData service. This could be due to changes in the service definition or incorrect data being sent.
  Transformation Issues: There may be issues with the transformation logic defined in the service, which could lead to errors during the deserialization process.
  Data Type Mismatches: The data types in the XML do not match the expected types in the OData model, leading to deserialization failures.
  
  Solutions:
  
  Validate XML: Check the XML being sent to the OData service for correctness. Use XML validation tools to ensure that it adheres to the expected schema.
  Check OData Service Definition: Review the OData service definition to ensure that the expected structure and data types are correctly defined. Make sure that any changes to the service are reflected in the XML being sent.
  Debug Transformation Logic: If there is custom transformation logic, debug it to ensure that it correctly handles the incoming XML data.
  Error Logging: Enable detailed error logging in the OData service to capture more information about the deserialization failure. This can help identify the specific part of the XML that is causing the issue.
  Test with Sample Data: Use known good XML samples that conform to the expected structure to test the OData service. This can help isolate whether the issue is with the incoming data or the service itself.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address known issues with the OData service or deserialization errors.
  OData Documentation: Review the OData documentation for guidelines on the expected XML structure and data types.
  Community Forums: Search SAP Community forums or other developer forums for similar issues and solutions shared by other users.
  
  By following these steps, you should be able to identify the root cause of the deserialization error and implement a solution to resolve it.