| Event Id | 1146 |
| Source | Active Directory |
| Description | The structural schema class identifier %1 (class name %2) derives from class identifier %3 (class name %4)- which is defined using multiple inheritance. This error was ignored and the inheritance was processed anyway. |
| Event Information | If a class is derived from two structural classes, it is defined as multiple inheritance. The specified class identifier is derived from two structural classes. Multiple-inheritance is not supported by Active Directory. This error was ignored and the inheritance was processed anyway. Resolve the multiple-inheritance issue for the parent class. |
| Reference Links | Monitoring AD Changes: Article |
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