The offline address list generator could not generate full details for some entries in the offline address list


Topic Last Modified: 2007-11-16

The Microsoft Exchange Server 2007 Management Pack for Operations Manager monitors the Windows Application log on computers that are running Exchange Server 2007 and generates this alert when the event or events specified in the following Details table are logged.

To learn more about this event, do one or more of the following:

  • Review the description of the event that includes the variables specific to your environment. From the Operator Console, select this alert, and then click the Properties tab.

  • Review all events that have been logged that meet the criteria of this Operations Manager alert. From the Operator Console, click the Events tab, and then double-click the event in the list for which you want to review the event description.


Product Name


Product Version

8.0 (Exchange Server 2007)

Event ID


Event Source


Alert Type


MOM Rule Path

Microsoft Exchange Server/Exchange 2007/Mailbox/System Attendant

MOM Rule Name

The offline address list generator could not generate full details for some entries in the offline address list. To see which entries are affected, set the diagnostic logging for MSExchangeSA\OAL Generator to Medium or higher.


This event indicates that the details information of a user object is larger than the 64-kilobyte (KB) limit in version 2 and version 3 offline address books (OABs).

User Action

To resolve this event, do the following:

  1. Modify OAB generator diagnostics logging to at least Medium. For more information about how to change the diagnostic logging levels, see How to Change Logging Levels for Exchange Processes.

  2. Update the OAB. For more information, see How to Update the Offline Address Book.

For More Information

To search the Microsoft Knowledge Base articles based on criteria that generated this alert, visit the Search the Support Knowledge Base (KB) Web site.

To review Exchange 2007 event message articles that may not be represented by Exchange 2007 alerts, see the Events and Errors Message Center.

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.