Adding hidden members to Office 365 Groups
We have hidden our students from Global Address List using "hide from address book" option in AD. Now teachers can't add students to Groups, because adding members to a Group is not possible even if full email address is known. It seems that GAL search is performed during member add. Please allow adding hidden members to a Group.

We’re working on this feature, and we hope to release later this spring. In our implementation, members of groups with hidden membership will not be visible to non-members; i.e. a non-member browsing these groups in the GAL will see no members in the group.
Keep track of our progress here: http://fasttrack.microsoft.com/roadmap#I-31830
9 comments
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Jesse Thompson commented
Based on the Admin response, I don't think Microsoft understands the problem being articulated.
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Anonymous commented
Bump?
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Danny Mainprize commented
3 years later.....still can't do it.
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Anonymous commented
So, are you guys still working on this or not? I can't find anything about it in the roadmap...
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Andrew commented
Anyone find a good workaround for this?
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Tyler commented
I tried to run the Powershell cmd as well. Rejected it for me too.
This is ridiculous. You'd think a private group would be..........dare I say.......private? As I research this, a private group is essentially "by invite only" and that's really about it. Still visible to everyone and although they can't see the details of the group, they can still see members. In my opinion that's very much a detail that should be hidden, or admins should be provided with a method to accomplish this. Crazy Microsoft removes the Powershell cmd without releasing a replacement for this functionality.
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Sam commented
@imran Set-UnifiedGroup <identity> -HiddenFromAddressListsEnabled previously was working and documented - https://web.archive.org/web/20161114042942/https://technet.microsoft.com/en-us/library/mt238274(v=exchg.160).aspx
Recently it stopped working and the documentation has been updated to show that the parameter is now for internal MS use only - https://technet.microsoft.com/en-us/library/mt238274(v=exchg.160).aspx.
Where's the change control here?
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David Young commented
Yes we have exactly the same problem, groups would be great for teacher-student collaboration but they can't add students. I'm not sure if Imram is understanding the issue correctly. We are trying to add users who are hidden from address book (in our case through ABP routing rules) to groups.
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Imran Masud commented
HiddenFromAddressListsEnabled could set via Set-UnifiedGroup. Currently there is bug that this will not apply to the group instantly. One work around is to call Update-Recipient cmdlet after setting the HiddenFromAddressListsEnabled . A proper fix is in progress and will role out shortly.
HidingMembership feature is being prototyped at this time. StayTune :)
@imasud_ms