How To Fix /CCIS/TAX665 - Attribute name in XSD is not defined

/CCIS/TAX665 - Overview

• Message type: E = Error

• Message class: /CCIS/TAX -

• Message number: 665

• Message text: Attribute name in XSD is not defined

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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/CCIS/TAX665 - Details

• The SAP error message /CCIS/TAX665 Attribute name in XSD is not defined typically occurs in the context of SAP's Convergent Charging or Convergent Invoicing solutions, particularly when dealing with XML Schema Definitions (XSD) for data exchange. This error indicates that there is an issue with the XML data being processed, specifically that an attribute referenced in the XML does not have a corresponding definition in the XSD.
  
  Cause:
  
  
  Mismatch in XML and XSD: The XML document being processed contains an attribute that is not defined in the associated XSD schema. This could be due to:
  
  A typo in the attribute name in the XML.
  An outdated or incorrect version of the XSD being used.
  Changes in the data model that have not been reflected in the XSD.
  
  
  
  Incorrect Configuration: The configuration settings in SAP might not be aligned with the expected XML structure, leading to discrepancies.
  
  
  Versioning Issues: If there are multiple versions of the XSD, the