How To Fix C1089 - Internal error: characteristic name is not unique

SAP Error Message - Details

• Message type: E = Error

• Message class: C1 - Characteristics maintenance messages

• Message number: 089

• Message text: Internal error: characteristic name is not unique

What causes this issue?

You want to create a <DS:GLOS.characteristic>characteristic</> with a
characteristic name that is within a reserved name range. However, the
characteristic number inferred from the characteristic name has already
been assigned.

System Response

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

How to fix this error?

Please contact your system administrator.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message C1089 - Internal error: characteristic name is not unique ?

  The SAP error message C1089, which states "Internal error: characteristic name is not unique," typically occurs in the context of SAP's classification system, particularly when dealing with characteristics in the classification of materials or objects. This error indicates that there is a conflict due to the presence of multiple characteristics with the same name, which is not allowed in the system.
  Cause:
  
  Duplicate Characteristic Names: The most common cause of this error is that there are two or more characteristics defined with the same name in the same class or in the system.
  Data Consistency Issues: There may be inconsistencies in the data, possibly due to incorrect data entry or issues during data migration.
  Configuration Errors: Misconfigurations in the classification settings or in the way characteristics are defined can lead to this error.
  
  Solution:
  
  
  Check for Duplicates:
  
  Go to the transaction code CL02 (Change Characteristic) or CL03 (Display Characteristic).
  Search for the characteristic name that is causing the issue.
  Ensure that there are no duplicate entries for that characteristic name.
  
  
  
  Rename or Delete Duplicates:
  
  If duplicates are found, you can either rename them to ensure uniqueness or delete the unnecessary duplicates if they are not needed.
  
  
  
  Review Class and Characteristic Assignments:
  
  Check the classes to which the characteristics are assigned. Ensure that each characteristic is uniquely defined within its class.
  
  
  
  Data Consistency Check:
  
  Run a consistency check on the classification data to identify any other potential issues that may not be immediately visible.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to classification and characteristics for any specific guidelines or updates that may pertain to your version of SAP.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking for duplicates and ensuring proper configuration, consider reaching out to SAP support for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CL01 (Create Characteristic), CL02 (Change Characteristic), CL03 (Display Characteristic), and CL20N (Class Management).
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  User Authorization: Ensure that you have the necessary authorizations to make changes to characteristics and classes in the system.
  
  By following these steps, you should be able to resolve the C1089 error and ensure that your classification system operates smoothly without conflicts.