How To Fix /PF1/MSG_CONV_XML058 - Only one occurrence of ' & ' is allowed

SAP Error Message - Details

• Message type: E = Error

• Message class: /PF1/MSG_CONV_XML -

• Message number: 058

• Message text: Only one occurrence of ' & ' is allowed

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /PF1/MSG_CONV_XML058 - Only one occurrence of ' & ' is allowed ?

  The SAP error message /PF1/MSG_CONV_XML058: Only one occurrence of ' & ' is allowed typically occurs during XML processing or conversion in SAP. This error indicates that there is an issue with the XML structure, specifically related to the use of the ampersand (&) character.
  Cause:
  
  Improper XML Formatting: The ampersand character is a special character in XML and is used to denote the beginning of an entity reference. If it appears in the XML content without being properly encoded (e.g., as &), it can lead to parsing errors.
  Multiple Ampersands: The error suggests that there is more than one occurrence of the ampersand character in a context where only one is allowed, which could be due to incorrect data formatting or concatenation in the XML.
  
  Solution:
  
  Check XML Content: Review the XML content being processed. Look for occurrences of the & character and ensure that they are properly encoded as &. If you have multiple ampersands in a single context, consider revising the data structure.
  Data Validation: Validate the data being converted to XML to ensure it adheres to XML standards. This includes checking for special characters and ensuring they are properly escaped.
  Debugging: If you have access to the code or configuration that generates the XML, add debugging statements to log the XML output before it is processed. This can help identify where the issue is occurring.
  SAP Notes: Check the SAP Support Portal for any relevant notes or patches that may address this specific error. Sometimes, there are known issues with specific versions of SAP that have been documented.
  
  Related Information:
  
  
  XML Encoding: Familiarize yourself with XML encoding rules, especially how to handle special characters. The most common ones include:
  
  & should be written as &
  < should be written as &lt;
  > should be written as &gt;
  " should be written as &quot;
  ' should be written as &apos;
  
  
  
  SAP Documentation: Refer to SAP documentation regarding XML processing and conversion for best practices and guidelines.
  
  
  Testing: After making changes, test the XML generation process thoroughly to ensure that the error is resolved and that the XML is valid.
  
  
  By following these steps, you should be able to identify and resolve the issue causing the /PF1/MSG_CONV_XML058 error in your SAP environment.