How To Fix STEP404 - Mapping of class &1 failed. Superior class &2 as classification ID

SAP Error Message - Details

• Message type: E = Error

• Message class: STEP - ISO 10303 STEP Mapping Messages

• Message number: 404

• Message text: Mapping of class &1 failed. Superior class &2 as classification ID

What causes this issue?

The STEP definition in the classification environment is not unique. Due
to the data structure a superior class has not been interpreted as a
class but as a characteristic assignment instead. Therefore the subclass
can no longer be established in the SAP system.

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

System Response

The relevant subclass is ignored.

How to fix this error?

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 STEP404 - Mapping of class &1 failed. Superior class &2 as classification ID ?

  The SAP error message "STEP404 Mapping of class &1 failed. Superior class &2 as classification ID" typically occurs in the context of classification and object management in SAP, particularly when dealing with class hierarchies in the Classification System (CLM). This error indicates that there is an issue with the mapping of a class to its superior class, which is essential for maintaining the integrity of the classification structure.
  Cause:
  
  Incorrect Class Hierarchy: The class you are trying to map may not be correctly defined in relation to its superior class. This could be due to a missing or incorrectly configured superior class.
  Data Inconsistency: There may be inconsistencies in the classification data, such as missing entries or incorrect relationships between classes.
  Authorization Issues: The user may not have the necessary authorizations to perform the mapping or access the required classes.
  Technical Issues: There could be underlying technical issues, such as database inconsistencies or problems with the classification system configuration.
  
  Solution:
  
  Check Class Definitions: Verify that both the class you are trying to map and its superior class are correctly defined in the system. Ensure that the superior class exists and is active.
  Review Class Hierarchy: Examine the class hierarchy to ensure that the relationships between classes are correctly established. You can do this using transaction codes like CL02 (Change Class) or CL03 (Display Class).
  Data Consistency Check: Run consistency checks on the classification data to identify and resolve any inconsistencies. This can often be done through standard SAP reports or tools.
  Authorization Check: Ensure that the user performing the mapping has the necessary authorizations to access and modify the classes involved.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Technical Support: If the issue persists, consider reaching out to your SAP Basis or technical support team for further investigation, especially if there are indications of database or system-level issues.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CL01 (Create Class), CL02 (Change Class), CL03 (Display Class), and CL24 (Class Hierarchy).
  SAP Documentation: Review SAP documentation related to the Classification System for more detailed information on class management and troubleshooting.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to identify the root cause of the error and implement an appropriate solution.