| Event Id | 1001 |
| Source | MSExchangeFDS |
| Description | Process %1 (PID=%2). Manifest file %3 for Offline Address Book file set %4 is corrupted. Aborting current file synchronization operation. |
| Event Information | According to Microsoft : Cause : This Error event indicates that the offline address book manifest file (oab.xml) is corrupted and cannot be synchronized with a Microsoft Exchange Server that is running the Client Access (CAS) server role. The offline address book manifest file contains offline address book entries and is generated on a server that is running Exchange Server and running the Mailbox server role. The Microsoft Exchange File Distribution service that is running on the CAS server replicates this file from the Mailbox server to the CAS server every eight hours. Resolution: To resolve this error, regenerate the offline address book file set that is specified in the event description. To do this, run the following Exchange Management Shell command from the Exchange server that logged this event:Update-OfflineAddressBook -Identity |
| Reference Links | Event ID 1001 from Source MSExchangeFDS |
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