How To Fix FDT_CHANGE_INFO460 - The old expression was &1

SAP Error Message - Details

• Message type: E = Error

• Message class: FDT_CHANGE_INFO - FDT: Changes info in object for different versions

• Message number: 460

• Message text: The old expression was &1

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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Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_CHANGE_INFO460 - The old expression was &1 ?

  The SAP error message FDT_CHANGE_INFO460 typically relates to issues with field-based expressions in the context of SAP's Form Data Technology (FDT). This error message indicates that there is a problem with the change information of an expression, specifically that the old expression is being referenced incorrectly or is not valid.
  Cause:
  
  Invalid Expression: The old expression referenced in the error message may not exist or may have been deleted or modified in a way that makes it invalid.
  Data Model Changes: Changes in the underlying data model or structure can lead to discrepancies in expressions that rely on specific fields or data types.
  Versioning Issues: If multiple versions of a form or data structure are being used, there may be conflicts or mismatches between the versions.
  Configuration Errors: Incorrect configuration settings in the FDT or related components can lead to this error.
  
  Solution:
  
  Check Expression Validity: Review the expression that is causing the error. Ensure that it is correctly defined and that all referenced fields exist and are valid.
  Update or Restore Expressions: If the old expression has been modified or deleted, consider restoring it or updating the new expression to ensure compatibility.
  Review Data Model Changes: If there have been recent changes to the data model, ensure that all expressions are updated accordingly to reflect these changes.
  Check Versioning: Ensure that you are working with the correct version of the form or data structure. If necessary, revert to a previous version that does not have this issue.
  Consult Documentation: Refer to SAP documentation or support resources for guidance on handling expression-related errors in FDT.
  Debugging: If the issue persists, consider enabling debugging or logging to gather more information about the context in which the error occurs.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to FDT and this specific error message.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  FDT Documentation: Review the official SAP documentation on Form Data Technology for best practices and troubleshooting tips.
  
  If the problem continues after trying these solutions, it may be beneficial to reach out to SAP support for further assistance.