How To Fix /PF1/MSG_CONV_XML139 - When '&' equals SNGL, then each & must contain only one occurrence of '&'

SAP Error Message - Details

• Message type: E = Error

• Message class: /PF1/MSG_CONV_XML -

• Message number: 139

• Message text: When '&' equals SNGL, then each & must contain only one occurrence of '&'

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /PF1/MSG_CONV_XML139 - When '&' equals SNGL, then each & must contain only one occurrence of '&' ?

  The SAP error message /PF1/MSG_CONV_XML139 typically indicates an issue with XML data conversion, specifically related to the handling of the ampersand (&) character in the XML content. This error arises when the XML parser encounters an ampersand that is not properly formatted or is used incorrectly according to XML standards.
  Cause:
  The error occurs when:
  
  The XML data contains an ampersand (&) that is not part of a valid XML entity. In XML, the ampersand is used to denote the beginning of an entity reference (e.g., &amp; for &, &lt; for <, &gt; for >, etc.).
  If the SNGL (single) option is set, it expects that each occurrence of & in the data should be a valid entity reference or should be escaped properly. If there are multiple occurrences of & without proper escaping, the parser will throw this error.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check the XML Data: Review the XML data being processed. Look for any occurrences of the & character that are not part of a valid entity reference. 
  
  
  Escape Ampersands: If you find any standalone & characters, replace them with the appropriate XML entity:
  
  Replace & with &amp; if it is meant to represent an ampersand.
  Ensure that any other special characters are also properly escaped.
  
  
  
  Validate XML Structure: Use an XML validator to check the overall structure of your XML document. This can help identify other potential issues that may not be directly related to the ampersand.
  
  
  Review Configuration: If you are using a specific configuration or setting that affects how XML is processed (like the SNGL setting), review the documentation or settings to ensure they are appropriate for your use case.
  
  
  Test Changes: After making the necessary changes, test the XML processing again to ensure that the error is resolved.
  
  
  Related Information:
  
  XML Standards: Familiarize yourself with XML standards and how special characters should be handled. The W3C XML specification provides detailed information on this topic.
  SAP Documentation: Check SAP's documentation or support notes related to XML processing and error messages for additional context and troubleshooting steps.
  Debugging Tools: Utilize debugging tools within SAP to trace the XML processing and identify where the error is occurring.
  
  By following these steps, you should be able to resolve the /PF1/MSG_CONV_XML139 error and ensure that your XML data is correctly formatted for processing.