How To Fix CL644 - Characteristic & not used on &

SAP Error Message - Details

• Message type: E = Error

• Message class: CL - Classification

• Message number: 644

• Message text: Characteristic & not used on &

What causes this issue?

You want to see a where-used list for characteristic &v1& on &v2&.
However, the characteristics is not in use on this date.

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?

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CL644 - Characteristic & not used on & ?

  The SAP error message CL644 indicates that a characteristic is not being used in the context of a classification or master data record. This typically occurs in the context of classification systems where characteristics are defined for classes or objects, and the system expects certain characteristics to be assigned or utilized.
  Cause:
  
  Unassigned Characteristic: The characteristic in question has not been assigned to the class or object you are trying to work with.
  Incorrect Configuration: The configuration of the class or characteristic may not be set up correctly, leading to the characteristic not being recognized as used.
  Data Inconsistency: There may be inconsistencies in the data where the characteristic is expected to be used but is not linked properly.
  Authorization Issues: Sometimes, authorization issues can prevent the system from recognizing the characteristic as being used.
  
  Solution:
  
  
  Check Class Assignment:
  
  Go to the classification view of the object (e.g., material, equipment) and check if the characteristic is assigned to the correct class.
  If it is not assigned, you can add the characteristic to the class.
  
  
  
  Review Characteristic Configuration:
  
  Navigate to the classification system configuration (transaction code CL02 for characteristics or CL03 for classes) and ensure that the characteristic is properly configured and linked to the appropriate class.
  
  
  
  Data Maintenance:
  
  If you are working with a specific object (like a material), ensure that the object has been classified correctly and that all necessary characteristics are filled out.
  
  
  
  Check for Authorizations:
  
  Ensure that you have the necessary authorizations to view and modify the classification data. If you suspect authorization issues, consult with your SAP security team.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help resources for additional context on the specific characteristic and its intended use.
  
  
  
  Debugging:
  
  If the issue persists, consider debugging the process to identify where the characteristic is being checked and why it is not recognized as used.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  CL02: Change Characteristic
  CL03: Display Class
  CL01: Create Class
  CL24N: Class Overview
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to classification and characteristics.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to resolve the CL644 error and ensure that the characteristic is properly utilized in your classification system.