To add/remove users from Matter, simply add or remove them from the Matter-connected Microsoft Teams team. See instructions below or this Microsoft Teams Support Article.
Alternatively, you can bulk add people to a Teams team via PowerShell or Power Automate. Or you can automate adding new users to a Teams team in Microsoft Entra admin center or through other options.
Our Web App syncs with Microsoft Teams every 24 hours. During this sync, we add/remove channel members to the Web App workspace.
If you add someone to the channel and you don't see them in the Web App, you'll need to wait 24 hours for the API sync, or you can email us at support@matterapp.com for faster assistance.
Important Notes:
Microsoft Teams Hierarchy = Organization > Team > Channel
You may need to be a Microsoft Teams Team Owner/Admin to add or remove users.
Membership is managed in Microsoft Teams, not in the Matter Web App. There's no option to add or remove users from the Web App — Matter mirrors whoever is in the connected Teams team.
Add/Remove Matter Users in Teams
Click "..." next to the desired Teams team.
Click Manage Team and then the Members tab at the top.
Either click Add Member to add a person or the X to remove a user from the team.
In the image below, the Microsoft Teams team is: Matter Demo
Don't see "Manage Team" when you click the "..."?
If Manage Team doesn't appear, you're most likely a member of the Teams team rather than an Owner. Only Team Owners can add or remove people.
This permission lives in Microsoft Teams and is completely separate from your Matter role; being a Matter admin does not make you a Teams Team Owner.
To fix this, ask a current Team Owner to make you an Owner. See Microsoft's instructions: Make someone a team owner in Microsoft Teams.
💡 Not sure who the Owners are? Open the team's Members tab. Owners are listed in their own section at the top.
Why is everyone in my organization being added automatically?
If new people keep appearing in Matter without anyone adding them, the connected Teams team is likely an org-wide team.
Organization-wide teams automatically include every user in the organization and keep membership up to date as users join and leave the organization. That means anyone who joins your Microsoft 365 organization is automatically added to the team and therefore appears in Matter at the next sync.
A few things to know:
Team members can't leave an organization-wide team, but team owners can manually add or remove users if needed.
All Global administrators and Teams administrators are added as team owners when an organization-wide team is created.
Removing someone from an org-wide team is a manual action, and new hires will continue to be added automatically going forward.
Learn more from Microsoft: Use organization-wide teams in Microsoft Teams