i have a group policy that force the outlook cache mode to be enabled on users now when i change a user title for example - the new title doesn't appear because of that so i need to know how often does this cached data gets updated form exchange or AD and if there is w way to push it manually to let the user see his new title for example after i change it in AD

Hi, When Outlook is running in cached mode it uses the offline address book. This offline address book is by default generated once each night and then downloaded to the clients some time next day. In short it can take between 24 and 48 hours before a change is reflected in the OAB. You can manually update the OAB and the get Outlook to download the OAB to speed things up. Leif

Hi, When Outlook is running in cached mode it uses the offline address book. This offline address book is by default generated once each night and then downloaded to the clients some time next day. In short it can take between 24 and 48 hours before a change is reflected in the OAB. You can manually update the OAB and the get Outlook to download the OAB to speed things up. Leif

If left constantly running, Outlook in cached mode automatically updates the offline address book on the client every 24 hours. To manually force a download of the latest offline address book, use one of the following methods: On the Tools menu, point to Send/Receive, and then click Download Address Book.Exit Outlook and then restart it. After Outlook starts, the offline address book download will start one to five minutes later. And you can also refer to the KB841273. Hope helps.Noya Lau TechNet Community Support

when i tried that i got this error