How To Fix /IWBEP/CM_MGW_RT028 - Transformation error on deserialization

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_MGW_RT -

• Message number: 028

• Message text: Transformation error on deserialization

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_MGW_RT028 - Transformation error on deserialization ?

  The SAP error message /IWBEP/CM_MGW_RT028 Transformation error on deserialization typically occurs in the context of SAP Gateway services when there is an issue with the deserialization process of the data being processed. This error can arise due to various reasons, including issues with the data format, inconsistencies in the data structure, or problems with the service implementation.
  Causes:
  
  Data Format Issues: The incoming data may not match the expected format or structure defined in the OData service.
  Inconsistent Data: The data being sent to the service may contain unexpected or invalid values that cannot be deserialized into the expected data model.
  Service Implementation Errors: There may be issues in the implementation of the OData service, such as incorrect mapping or transformation logic.
  Version Mismatch: If there are changes in the data model or service definition that are not reflected in the client application, it can lead to deserialization errors.
  Missing Fields: Required fields in the data model may be missing in the incoming request.
  
  Solutions:
  
  Check Data Format: Ensure that the data being sent to the OData service is in the correct format (e.g., JSON or XML) and adheres to the expected structure.
  Validate Input Data: Before sending data to the service, validate it to ensure that all required fields are present and that the values conform to the expected data types.
  Review Service Implementation: Check the implementation of the OData service for any errors in the mapping or transformation logic. Ensure that the service is correctly configured to handle the incoming data.
  Update Client Application: If there have been changes to the OData service or data model, ensure that the client application is updated accordingly to reflect these changes.
  Debugging: Use debugging tools to trace the request and response flow. Check the logs for any additional error messages that may provide more context about the issue.
  Test with Sample Data: Use known good sample data to test the service and see if the error persists. This can help isolate whether the issue is with the data being sent or with the service itself.
  
  Related Information:
  
  SAP Gateway Logs: Check the SAP Gateway logs (transaction /IWFND/ERROR_LOG) for more detailed error messages and stack traces that can help identify the root cause.
  OData Service Metadata: Review the service metadata (accessible via the service URL with $metadata) to ensure that the data being sent matches the expected structure.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address known issues related to this error message.
  Community Forums: Consider checking SAP Community forums or other online resources for similar issues and solutions shared by other users.
  
  By following these steps, you should be able to identify and resolve the cause of the /IWBEP/CM_MGW_RT028 Transformation error on deserialization error in your SAP environment.