877 votesthinking about it · AdminMicrosoft 365 Groups Feedback (Product Owner, Microsoft Office 365) responded
Following up on the previous update, if a workload (such as Planner) is enabled for Outlook by default, we don’t plan on hiding those groups from the GAL. The only other scenario currently under consideration where we would hide groups by default is “Secret Groups”. “Secret Groups” would be hidden from everywhere unless you are a member. “Secret groups” is on the Microsoft 365 Groups backlog, but there is no delivery date available at this time.
An error occurred while saving the commentAnonymous commented
its 2018 now, this option is still not available. its not a big issue until firm wide MS teams adoption. Every group created by users in MS teams are (suppose to be O365 group, but its kinda not) showing in the Global Address list, creating mass confusion. MS support tech has given us a command to hide all O365 groups from Global Address list, however its not ideal since we need to run in periodically. Anyways, for those who are interested:
To hide all O365 groups from GAL
Get-UnifiedGroup -ResultSize unlimited | Set-UnifiedGroup -HiddenFromAddressListsEnabled $true
To enable specific O365 group in GAL
Set-UnifiedGroup -Identity email@example.com -HiddenFromAddressListsEnabled $false