How To Fix WSPT018 - Header: Transformation error "&" in program & and line &.

SAP Error Message - Details

• Message type: E = Error

• Message class: WSPT - Message Class for Portugal Webservice

• Message number: 018

• Message text: Header: Transformation error "&" in program & and line &.

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.

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• What is the cause and solution for SAP error message WSPT018 - Header: Transformation error "&" in program & and line &. ?

  The SAP error message:
  WSPT018 Header: Transformation error "&" in program & and line &.
  
  
  Cause:
  This error occurs during an XSLT or ABAP transformation process when the transformation engine encounters an invalid character or syntax issue in the XML or XSLT code. Specifically, the character "&" (ampersand) is a special character in XML and must be properly escaped as &. If the transformation input contains an unescaped ampersand, the parser throws this error.
  In other words, the transformation engine found an unescaped & character in the XML data or in the XSLT stylesheet, which violates XML well-formedness rules.
  
  Explanation:
  
  The error message indicates a transformation error in a program at a specific line.
  The & character is reserved in XML for entity references.
  If the input XML or the XSLT contains & not part of a valid entity (like &, <, etc.), the parser fails.
  This is a common issue when data contains special characters that are not