Address book update

Question

Hi I am using an Exchange 2016 hybrid environment. We create users on-premises and migrate them to Exchange Online. Three of my Mac users are facing issues with address book updates; they are unable to see contacts in their Outlook. Mailboxes are properly migrated to exchange online, users are assigned Office365 license. Please guide me on how to fix this issue

Answer 1

Hello, @Roger Roger,

Welcome to the Microsoft Q&A platform!

According to my searches, the Offline Address Book (OAB) for Outlook on Mac is indeed updated every 24 hours by default. It will not be updated less than that and cannot be forced update. If you have waited for less than one day, please keep patient to wait some time.

However, if your users are still experiencing issues, there might be a delay or a problem with the OAB download process.

To resolve the issue with Mac users not seeing updated contacts in Outlook, ensure the Offline Address Book (OAB) is properly configured and updated in Exchange Online, manually download the OAB in Outlook for Mac, check for any network issues, update Outlook to the latest version, and consider rebuilding the Outlook profile if necessary. If problems persist, verify directory synchronization with Azure AD Connect and review relevant logs for errors.

If the above steps cannot resolve the issue, Microsoft has a dedicated support team for Outlook for Mac. It is suggested that you directly contact this support team by clicking Contact Support in the Help menu in Outlook for Mac. That team will assist you further. We sincerely appreciate your support for our products and services.  

Should you need more help on this, you can feel free to post back. 

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Thank you for your support and understanding.

Best Wishes,

Alex Zhang