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Hi,
See the last (bottom) comment in this thread about extended properties for AADC to sync.
https://community.spiceworks.com/topic/2161572-azure-ad-connect-not-syncing-hide-from-address-lists
Hope this helps. Ash
Hide Users from GAL Hyrid not working
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Sin Ngo
26
Reputation points
Hi,
I have Azure VM domain controller setup which uses Azure AD Connect for O365.
I have set the attribute in AD.
Confirmed via Powershell.
Yet, I'm seeing no changes in O365 Exchange admin portal and I can't figure it out :( Does anyone know what I'm missing?
Windows for business | Windows Client for IT Pros | Directory services | Active Directory
Microsoft 365 and Office | Install, redeem, activate | For business | Windows
Microsoft 365 and Office | Install, redeem, activate | For business | Windows
Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Answer accepted by question author
2 additional answers
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Vasil Michev 125.2K Reputation points MVP Volunteer Moderator2023-03-01T08:23:02.66+00:00 Make sure the user has the mailNickname/alias attribute populated in AD. Most of the AAD Connect rules responsible for Exchange-related attributes have a scoping filter requiring the mailNickname/alias attribute to have a non-null value, otherwise they will ignore the object.
Other than that, check for any sync errors. You can follow the instructions here to troubleshoot the sync flow: https://learn.microsoft.com/en-us/azure/active-directory/hybrid/tshoot-connect-object-not-syncing#connector-space-object-properties
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Kleiner, Michael 0 Reputation points2023-10-18T16:26:27.56+00:00 This was our answer-- the nickname attribute was blank and as Vasil said, AAD ignores the msExchHideFromAddressLists field, even though it was set to $True.
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ChandruVenkatesan-9662 0 Reputation points2023-10-30T18:00:08.2633333+00:00 adding the mailnickname to ad attribute worked.
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Dpt. Sistemes 1 Reputation point2025-05-13T10:31:14.0333333+00:00 Also here: adding mailnickname solved the issue for us
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Sin Ngo 26 Reputation points
2023-03-02T05:28:11.02+00:00 Thanks everyone for their feedback. The Spiceworks reference link has been very useful.