Process %1 (PID=%2). %3 operation has failed for %4. Exception message: %5 Current file synchronization operation is aborted.

This Warning event indicates that the Microsoft® Exchange File Distribution service (MSExchangeFDS) did not perform one of the file synchronization operations. The MSExchangeFDS is used to distribute offline address books and custom Unified Messaging prompts. This event may occur for various reasons.

To determine the root cause of this Warning event, follow these steps:

1. Use the following Exchange Management Shell cmdlet to increase the diagnostic logging level on the FileReplication counter of the MSExchangeFDS performance object to the High setting:

   1. Set-EventLogLevel MSExchangeFDS\FileReplication -Level High

      Note   For detailed information about increasing logging, see How to Change Logging Levels for Exchange Processes.

2. Review other related Error and Warning events in the Application log. These related events may help you determine the root cause of this error.

3. Use the following Exchange Management Shell cmdlet to set the diagnostic logging level on the FileReplication counter of the MSExchangeFDS performance object back to the default Lowest setting:

   1. Set-EventLogLevel MSExchangeFDS\FileReplication -Level Lowest

      Important   After you have completed troubleshooting this issue, you should always return logging to the default level to avoid filling your event logs.

If you are not already doing so, consider running the tools that Microsoft Exchange offers to help administrators analyze and troubleshoot their Exchange environment. These tools can help you make sure that your configuration is in line with Microsoft best practices. They can also help you identify and resolve performance issues, improve mail flow, and better manage disaster recovery scenarios. Go to the Toolbox node of the Exchange Management Console to run these tools now. For more information about these tools, see Toolbox in the Exchange Server 2007 Help.