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.