How To Fix STEP408 - Class &1: Class type undefined due to missing classification. Set: &2

SAP Error Message - Details

• Message type: E = Error

• Message class: STEP - ISO 10303 STEP Mapping Messages

• Message number: 408

• Message text: Class &1: Class type undefined due to missing classification. Set: &2

What causes this issue?

The class does not contain any classified objects. Therefore, no class
categories can be determined from the STEP file.

System Response

A default value is set.

How to fix this error?

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

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 STEP408 - Class &1: Class type undefined due to missing classification. Set: &2 ?

  The SAP error message "STEP408 Class &1: Class type undefined due to missing classification. Set: &2" typically occurs in the context of classification in SAP, particularly when dealing with material master data or other objects that utilize classification systems.
  Cause:
  
  Missing Class Type: The error indicates that the system is trying to access a class type (in this case, &1) that has not been defined or is not available in the system. This can happen if the class type has been deleted or if it was never created.
  Missing Classification Set: The classification set (&2) that is supposed to be associated with the class type is also missing or not properly configured.
  Configuration Issues: There may be issues in the configuration of the classification system, such as incorrect settings in the Customizing (SPRO) for the classification system.
  
  Solution:
  
  
  Check Class Type Definition:
  
  Go to the SAP Customizing Implementation Guide (SPRO).
  Navigate to Logistics General > Material Master > Basic Settings > Define Class Types.
  Verify if the class type &1 exists. If it does not, you may need to create it or restore it if it was deleted.
  
  
  
  Check Classification Set:
  
  Ensure that the classification set &2 is defined and correctly linked to the class type.
  You can check this in the same SPRO area under Logistics General > Classification > Define Classes.
  
  
  
  Review Object Configuration:
  
  If you are working with a specific object (like a material), check the configuration of that object to ensure it is correctly classified.
  You can do this by going to the material master record and checking the classification view.
  
  
  
  Authorization Issues:
  
  Ensure that you have the necessary authorizations to view and modify class types and classifications.
  
  
  
  Transport Issues:
  
  If this issue arose after a transport, ensure that all necessary objects were transported correctly and that there are no missing dependencies.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to classification and class types for any additional insights or known issues.
  
  
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like CL02 (Change Class), CL03 (Display Class), and CL01 (Create Class) to manage class types and classifications.
  SAP Notes: Check SAP Notes for any specific issues related to your version of SAP that might address this error.
  Support: If the issue persists, consider reaching out to your SAP support team or consulting with SAP support for further assistance.
  
  By following these steps, you should be able to identify the root cause of the error and implement the necessary solutions to resolve it.