How To Fix MDG_CLF_LEAN028 - Invalid class &1 (class type &2) in class assignment of material &3

SAP Error Message - Details

• Message type: E = Error

• Message class: MDG_CLF_LEAN - Lean Classification - Central Governance parts

• Message number: 028

• Message text: Invalid class &1 (class type &2) in class assignment of material &3

What causes this issue?

You assigned material &V3& to class &V1& of class type &V2&. This class
is invalid since it is not valid today or has a status that does not
allow its use in classification.

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?

Adjust the validity or the status of class &V1& or use another class.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MDG_CLF_LEAN028 - Invalid class &1 (class type &2) in class assignment of material &3 ?

  The SAP error message MDG_CLF_LEAN028 indicates that there is an issue with the class assignment of a material in the Master Data Governance (MDG) system. Specifically, the error states that the class being referenced is invalid for the specified class type.
  Cause:
  
  Invalid Class: The class specified in the error message does not exist or is not active in the system.
  Incorrect Class Type: The class type associated with the class does not match the expected class type for the material.
  Configuration Issues: There may be configuration issues in the classification system or the material master data setup.
  Authorization Issues: The user may not have the necessary authorizations to access the class or class type.
  
  Solution:
  
  
  Verify Class Existence:
  
  Check if the class specified in the error message exists in the system. You can do this by navigating to the classification view in SAP and searching for the class.
  
  
  
  Check Class Type:
  
  Ensure that the class type associated with the class is correct and matches the expected class type for the material. You can check this in the class type configuration.
  
  
  
  Activate Class:
  
  If the class is inactive, you may need to activate it. This can be done in the classification view.
  
  
  
  Review Material Master Data:
  
  Check the material master data to ensure that the class assignment is correct and that the material is assigned to the appropriate class.
  
  
  
  Authorization Check:
  
  Ensure that the user has the necessary authorizations to access and modify the class and class type.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to classification and material master data for any additional guidance or known issues.
  
  
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like CL02 (Change Class) or MM02 (Change Material) to investigate and make necessary changes.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  MDG Configuration: Review the configuration settings in the MDG system related to material classification and class types.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or reach out to SAP support for further assistance.