How To Fix MDM_CLF_LEAN234 - Unknown class &1 (class type &2) in class assignment of object &3

SAP Error Message - Details

• Message type: E = Error

• Message class: MDM_CLF_LEAN - MDM Lean Classification - Reuse Parts

• Message number: 234

• Message text: Unknown class &1 (class type &2) in class assignment of object &3

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message MDM_CLF_LEAN234 - Unknown class &1 (class type &2) in class assignment of object &3 ?

  The SAP error message "MDM_CLF_LEAN234 Unknown class &1 (class type &2) in class assignment of object &3" typically occurs in the context of Master Data Management (MDM) or when dealing with classification in SAP systems. This error indicates that the system is trying to assign a class to an object, but it cannot find the specified class or class type.
  Cause:
  
  Missing Class: The class specified in the error message does not exist in the system. This could be due to deletion or incorrect configuration.
  Incorrect Class Type: The class type specified may not be valid or may not correspond to the class being referenced.
  Authorization Issues: The user may not have the necessary authorizations to access the class or class type.
  Data Inconsistency: There may be inconsistencies in the data or configuration settings that lead to the system being unable to recognize the class.
  
  Solution:
  
  
  Check Class Existence:
  
  Use transaction code CL02 (Change Class) or CL03 (Display Class) to verify if the class exists in the system.
  If the class does not exist, you may need to create it using transaction CL01 (Create Class).
  
  
  
  Verify Class Type:
  
  Ensure that the class type specified in the error message is correct and corresponds to the class you are trying to assign.
  You can check the class types in the configuration settings.
  
  
  
  Review Authorizations:
  
  Ensure that the user has the necessary authorizations to access and assign the class. This may involve checking roles and authorizations in transaction PFCG.
  
  
  
  Check Configuration Settings:
  
  Review the configuration settings related to classification and ensure that everything is set up correctly.
  Look for any inconsistencies in the configuration that might lead to this error.
  
  
  
  Debugging:
  
  If the issue persists, consider debugging the process to identify where the error is occurring. This may require technical expertise.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or support notes related to classification and MDM for additional guidance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CL01, CL02, CL03, and PFCG.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Community Forums: Engage with SAP community forums or support channels for additional insights and solutions from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.