To get the OAM to immediately generate run the following command: Update-Offline Addressbook “name of offline address book”.
You may encounter an issue stating that the System Attendant Service is not running or you do not have permission. Make sure you are running the Exchange Management Shell as Administrator and 2. *note* The Service is named “Microsoft Exchange System Attendant”.
24/02/13If you create a new user, give them a mailbox, and they seemingly fail to appear then don’t panic! If you receive an error message then you can investigate further (Note: Set your Outlook client to send you a delivery report on the test email as well).
In order for some GAL entries to show up properly you may need to turn off Cached Exchange Mode.
Please visit the document on How to turn on or off Cached Exchange Mode for (Outlook 2007, Outlook 2010, and Outlook 2013).
The Outlook Client failed to download an updated copy of the Offline Address Book because the services have stopped functioning.
When changes occur within the main Global Address Book (GAL) on the Exchange server, computers running Outlook 2007, 2010, and 2013 may not automatically receive the updates.
If this is happening, then you may notice missing, non-existent and/or incorrect entries.Synchronizing your Outlook (cached) address book with the Global Address book may fix these discrepancies.