How To Fix MSG_CL_ER179 - Classification System &1(&2) is in use and can not be deleted

SAP Error Message - Details

• Message type: E = Error

• Message class: MSG_CL_ER - Message Class for Enterprise Registry

• Message number: 179

• Message text: Classification System &1(&2) is in use and can not be deleted

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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Smart SAP Assistant

• What is the cause and solution for SAP error message MSG_CL_ER179 - Classification System &1(&2) is in use and can not be deleted ?

  The SAP error message MSG_CL_ER179 indicates that a classification system (or class type) is currently in use and cannot be deleted. This typically occurs when there are existing objects (like materials, equipment, or other classification objects) that are assigned to the classification system you are trying to delete.
  Cause:
  
  Active Assignments: The classification system has active assignments to various objects in the SAP system. This means that there are classes or characteristics that are still being utilized.
  Dependencies: There may be dependencies or links to other data that prevent the deletion of the classification system.
  System Configuration: The classification system may be part of a configuration that is essential for business processes.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Identify Usage:
  
  Use transaction codes like CL02 (Change Class) or CL03 (Display Class) to check which classes are associated with the classification system.
  Check for any materials, equipment, or other objects that are assigned to the classes in the classification system.
  
  
  
  Remove Assignments:
  
  If you find any objects assigned to the classification system, you will need to remove these assignments. This may involve:
  
  Deleting or changing the classification of materials or other objects.
  Ensuring that no characteristics are linked to the classes you want to delete.
  
  
  
  
  
  Check Dependencies:
  
  Ensure that there are no dependencies or links to other configurations that might prevent deletion. This may involve checking related modules or configurations.
  
  
  
  Delete the Classification System:
  
  Once all assignments and dependencies are cleared, you can attempt to delete the classification system again using transaction CL01 (Create Class) or the appropriate transaction for your version of SAP.
  
  
  
  Consult Documentation:
  
  If you are unsure about the implications of deleting a classification system, consult SAP documentation or your organization's SAP support team for guidance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CL01, CL02, CL03, and CL24 (for class type management).
  SAP Notes: Check SAP Notes for any specific issues or patches related to classification systems.
  Authorization: Ensure you have the necessary authorizations to make changes to classification systems and related objects.
  Testing: Always test changes in a development or quality assurance environment before applying them to production.
  
  By following these steps, you should be able to resolve the error and successfully delete the classification system if it is no longer needed.