| Event Id | 1150 |
| Source | MSExchangeSRS |
| Description | Class identifier <value> (class name <object name>) is part of a circular inheritance hierarchy. This class references itself either as a superclass or an auxiliary class. Inheritance ignored. |
| Event Information | A schema object is corrupted. The schema is a collection of properties for objects in the directory. Stop and restart the Site Replication Service. If the error persists, restore the directory database from a backup, or contact Microsoft Product Support |
| Reference Links |
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