How To Fix KH454 - & is not unique

SAP Error Message - Details

• Message type: E = Error

• Message class: KH - CO-PA Reporting

• Message number: 454

• Message text: & is not unique

What causes this issue?

In form &V3&, a hierarchy node is used for the characteristic &V2& in
an element (row, column or cell).
&V2& is dependent on &V1&. Therefore &V1& must be specified with a
characteristic value for this element. "To" values or variables cannot
be used.

How to fix this error?

Check form &V3& to see where a &V2& node is used, and fix the form.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

<DS:TRAN.KDNN>Display form</>

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message KH454 - & is not unique ?

  The SAP error message KH454 typically indicates that there is a problem with the assignment of a cost element or cost center in the context of controlling (CO) or financial accounting (FI). The specific message "is not unique" suggests that the system has found multiple entries that match the criteria being used, leading to ambiguity.
  Cause:
  
  Duplicate Entries: The most common cause of this error is that there are duplicate entries in the configuration or master data that the system is trying to access. This could be in cost centers, cost elements, or other related master data.
  Incorrect Configuration: There may be an issue with the configuration settings in the controlling module, where the system is unable to determine which entry to use due to overlapping criteria.
  Data Inconsistency: There might be inconsistencies in the data that have not been resolved, leading to multiple valid entries for the same criteria.
  
  Solution:
  
  Check for Duplicates: Review the relevant master data (cost centers, cost elements, etc.) to identify any duplicate entries. You can use transaction codes like KS03 (Display Cost Center) or KA03 (Display Cost Element) to check for duplicates.
  Data Cleanup: If duplicates are found, you may need to delete or merge them to ensure that each entry is unique. Be cautious and ensure that you have the necessary authorizations and backups before making changes.
  Review Configuration: Check the configuration settings in the controlling module to ensure that they are set up correctly. This may involve reviewing the settings in transaction codes like OKB9 (Define Cost Elements) or OKEQ (Define Cost Center).
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on the error message and its context.
  Contact Support: If the issue persists after checking for duplicates and reviewing configurations, consider reaching out to SAP support or your internal SAP team for further assistance.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes for managing cost elements and cost centers, such as KS01 (Create Cost Center), KA01 (Create Cost Element), and others.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP Notes can provide insights into specific bugs or configuration issues that may be causing the error.
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to identify the cause of the KH454 error and implement a solution to resolve it.