Microsoft Teams - Meetings: Channel meetings and Outlook invitations?

Brass Contributor

Hi everyone!


If I schedule a meeting in a Channel, will this automatically send an outlook invite to Team members?

If I don't manually add anyone to the team, but just add the group as a whole, will this automatically send an outlook invitation to the Team?


Thank you!

10 Replies
best response confirmed by Ann-Margaret (Brass Contributor)
This is a long standing debate that no one really can tell how this is supposed to work lol. It seems rather random and I believe is based on if people follow the group or not that's attached to the Team, which they used to by default but it keeps going back and forth. People have inconsistent behavior with it, so I don't even bother and always create manual entries for meetings or we will attach an ics file to a channel chat, @ mention everyone to add that to their calendar. Microsoft is working on group calendar support for Teams, so hoping they fix all that with that implementation.

@Chris Webb 

Actually I've seen only users with their exchange mailbox on premises will receive the invite on their email. Users with Exchange online will not receive the meeting invitation by email. 

@Chris Webb Is this not controlled by the unifiedgroup attribute AlwaysSubscribeMembersToCalendarEvents ? 
And I'm wondering if this was not set to True in the past then Microsoft changed it to False when creating a new team. Anyone now if that changed?

@Markus Johansson 


This is indeed controlled by the AlwaysSubscribeMembersToCalendarEvents. It used to be set to True by default (circa 2018) and is now False. This default change was not retofitted (to be fair that would have been even worse) so you'll likely have teams where it's set and teams where it's not. It's presumably a sysadmin job to make a decision on behaviour and retrofit. See below for problems with users doing this. 


In order for a group member to receive event (read calendar) notifications in their Inbox / Calendar they need to be “subscribed” to the group to do so. If they are not subscribed the event will simply go into the Groups calendar and in the case of ‘Teams enabled’ groups, into the requisite channel too. The setting (alwayssubscribememberstocalendarevents)  dictates whether new members are “subscribed for events” by default when they are added to the Team / Group.


A subtle but very important note being that changing this setting after a member is added will have zero effect on existing members, this would need to be altered in one of two ways.


  1. Each user goes to People / Groups in Office 365, find the group in question and selects “Follow In Inbox”*
  2. Someone runs the Add-UnifiedGroupLinks / Remove-UnifiedGroupLinks cmdlet (subscription type) with some powershell compare-object fun to determine who is already member but is not subscribed. Adding or removing their subscription as preferred.


* But why would life be easy. Option one is only possible on old teams as newer groups (created via MS Teams) are hidden from Outlook clients and the Global Address List. Courtesy of the settings “HiddenFromExchangeClientsEnabled” / “HiddenFromAddressListsEnabled” which are now set to True as default. The first setting literally removes it from OWA / Outlook the latter is the GAL. Meaning neither owners or members would be able to find it.

@Mark Needham 

Current behavior is that when you leave the list of invitees empty:

  • all internal employees that are part of the channel will get the channel meeting in their calendar (where the subject is trailed with "FW:") but they do not receive an email. If you want to have emails sent to internal employees, explicitly add them to the list of invitees and then the subject on the calendar entry isn't trailed by "FW".
  • all guests that are part of the channel will receive an email invite


@Michel Gebbinck in my Organizations the employees neither get an email nor is the meeting shown in the calendars. Do you have any clue why?
As was said above "newer groups (created via MS Teams) are hidden from Outlook clients and the Global Address List" -likely reason

@Sophie_Bruehl I realize your post is almost two months old but I am linking to this anyway Understanding Who Receives Invitations for Teams Meetings - Office 365 for IT Pros (office365itpros....

@ChristianJBergstrom Wondered if there is such a helpful resource for people other than IT professionals. It looks like non-IT professionals also want to know how channel members can be invited via Outlook using the channel name and the invitation to appear in the channel members' calendar and receive the invite via e-mail. Thanks.

@asodiq Hello, first. Today one cannot schedule channel meetings from Outlook. So it must be done from Teams. The users can control the group subscriber settings themselves by going to the underlying group settings and chose the preferred setting.


For ex. when in Teams you have the option to "Open in SharePoint" using ... Then click on Conversations in the left navigation bar. Click on the three dots ... and Settings.




These are the subscriber settings that are also mentioned above using PowerShell as an admin. They tend to be inconsistent when it comes to "events " which explains why some gets an invitation while others don't.