How To Fix S_WBEM029 - Unexpected start of XML document

SAP Error Message - Details

• Message type: E = Error

• Message class: S_WBEM - WBEM Client API

• Message number: 029

• Message text: Unexpected start of XML document

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.

Unfortunately, there isn't any extra information in this error notice.

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Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

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Smart SAP Assistant

• What is the cause and solution for SAP error message S_WBEM029 - Unexpected start of XML document ?

  The SAP error message S_WBEM029: Unexpected start of XML document typically occurs when there is an issue with the XML data being processed in the SAP system. This error can arise in various contexts, such as when working with web services, data imports, or other XML-related operations.
  Causes:
  
  Malformed XML: The XML document being processed may not be well-formed. This could include issues like missing tags, incorrect nesting, or invalid characters.
  Empty Response: The system might be receiving an empty response or a response that is not in XML format when it expects XML.
  Network Issues: Problems with network connectivity can lead to incomplete or corrupted XML data being received.
  Incorrect Content-Type: The server might be returning a response with an incorrect content type, leading the SAP system to misinterpret the data.
  Encoding Issues: The XML document may have encoding issues, such as using an unsupported character set.
  
  Solutions:
  
  Validate XML: Use an XML validator to check the structure of the XML document. Ensure that it is well-formed and adheres to the expected schema.
  Check Response: If the error occurs during a web service call, use tools like Postman or SOAP UI to inspect the actual response being returned. Ensure it is valid XML.
  Review Network Logs: Check network logs for any connectivity issues or errors that might indicate why the XML is malformed or incomplete.
  Content-Type Verification: Ensure that the server is returning the correct Content-Type header (e.g., application/xml or text/xml) for the XML response.
  Encoding Check: Verify that the XML document is encoded correctly (e.g., UTF-8) and that there are no unsupported characters.
  Debugging: If you have access to the SAP system's debugging tools, you can trace the execution to see where the error is occurring and gather more context.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error. SAP frequently updates its knowledge base with solutions for common problems.
  Documentation: Review the documentation for the specific SAP module or function you are working with to understand the expected XML structure and requirements.
  Community Forums: Engage with SAP community forums or support channels where other users may have encountered similar issues and can provide insights or solutions.
  
  If the problem persists after trying the above solutions, consider reaching out to SAP support for further assistance, providing them with detailed information about the error and the context in which it occurs.