Outlook offline address book not updating
someone who just received a CUMC email account, a new student, someone who recently changed their directory information) please use the steps below to synchronize your computer's locally cached version of the GAL.
The Contacts folder looks ok, but selecting the "Global Address List" fails ("The requested operation cannot be completed because the operation is not supported on this object.").
This copy provides quick access to your data, and it is frequently updated with the server that runs Microsoft Exchange.
If you want to turn off Cached Exchange Mode, repeat the steps, but clear Use Cached Exchange Mode.
If you work offline, whether by choice or due to a connection problem, your data is still available to you instantly wherever you are.
If Outlook is stuck in Offline mode, see Work offline in Outlook.You can continue to work while changes are synchronized.Top of page When data is optimized for an Exchange connection type, the type of items that are synchronized with your server mailbox are different.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”.The Outlook Client failed to download an updated copy of the Offline Address Book because the services have stopped functioning.