Microsoft Teams and Outlook are the default meeting stack for most Microsoft 365 organizations, and scheduling a Teams call from an Outlook invite takes about ten seconds once you know where the toggle lives. The trouble is that the toggle lives in a slightly different place in each Outlook version — and if you’re on classic Outlook for Windows, the whole thing depends on a COM add-in that occasionally breaks.

Here’s how to schedule a Teams meeting from every version of Outlook, how to make Teams the default for all meetings, and how to fix the Teams button when it disappears.

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1. New Outlook Desktop & Outlook on the Web

The new Outlook for Windows and Outlook on the web use the same interface, and both treat Teams as a built-in option rather than an add-in. You’ll see a Teams meeting toggle directly in the event compose window.

Create a Teams meeting

1. Open new Outlook or go to outlook.office.com and sign in.
2. Click the calendar icon in the left navigation.
3. Click New event at the top of the calendar.
4. Enter a title, add attendees, and set the date and time.
5. Toggle Teams meeting on (the slider sits just below the location field).
6. Add an optional description or agenda in the body.
7. Click Send (if attendees are invited) or Save (if it’s a personal hold).

A Join Microsoft Teams Meeting link and dial-in numbers are added to the invite automatically, and every attendee gets them in their email.

Add Teams to an existing meeting

1. Open the event from your calendar.
2. Click Edit if it’s a meeting you already sent.
3. Toggle Teams meeting on.
4. Click Send update. Attendees receive a refreshed invite with the Teams link.

Note: The Teams toggle only appears if your account is licensed for Microsoft Teams. Personal Outlook.com accounts use Skype or Teams (free) instead — the toggle label will match whichever is available.

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2. Classic Outlook for Windows (Teams Meeting Add-in)

Classic Outlook relies on the Microsoft Teams Meeting Add-in for Microsoft Office, a COM add-in that installs alongside the Teams desktop app. When it’s working, you get a dedicated New Teams Meeting button on the calendar ribbon.

Create a Teams meeting

1. Open classic Outlook and click the Calendar icon in the navigation pane.
2. On the Home tab, click New Teams Meeting (or go to New Items > Teams Meeting).
3. Fill in the Subject, Required attendees, Start time, and End time.
4. The meeting body is pre-filled with the Teams join link, meeting ID, passcode, and dial-in numbers — don’t delete this section.
5. Add any extra notes or an agenda above the join info.
6. Click Send.

Add Teams to an existing meeting

1. Open the meeting from your calendar.
2. On the Meeting tab, click Teams Meeting.
3. The Teams join details are inserted into the body.
4. Click Send Update.

Install or enable the Teams Meeting Add-in

The add-in is bundled with the Teams desktop app for Windows. If you don’t see New Teams Meeting on the ribbon:

1. Close both Outlook and Microsoft Teams.
2. Relaunch Teams and sign in (the add-in registers on startup).
3. Reopen Outlook.
4. If the button is still missing, go to File > Options > Add-ins.
5. At the bottom, set Manage to COM Add-ins and click Go.
6. Check the box next to Microsoft Teams Meeting Add-in for Microsoft Office.
7. Click OK and restart Outlook.

If the add-in isn’t listed under COM Add-ins at all, download and install the Teams desktop app from microsoft.com/teams — the installer registers the add-in automatically. The web version of Teams does not install the Outlook add-in.

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3. Outlook Mobile (iOS and Android)

The Outlook mobile app has Teams built in for any account that’s licensed for it. The experience is the same on iOS and Android.

Create a Teams meeting

1. Open the Outlook app.
2. Tap the Calendar icon at the bottom of the screen.
3. Tap the + button to create a new event.
4. Enter a title.
5. Add people in the invitees field.
6. Set the start and end times.
7. Toggle Teams meeting on.
8. Tap the checkmark (iOS) or Done (Android) to save.

The Teams join link is added to the event and sent to all attendees. Tapping the link on a phone opens the meeting in the Teams mobile app if it’s installed, or prompts to join via browser.

Join a Teams meeting from mobile

1. Open the meeting from your Outlook calendar.
2. Tap Join at the top of the event details (or tap the Teams link in the body).
3. Teams launches and asks you to confirm mic and camera settings before joining.

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4. Outlook for Mac

Outlook for Mac supports Teams meetings natively — no separate add-in install is needed as long as the Teams desktop app is installed and you’re signed in.

Create a Teams meeting

1. Open Outlook for Mac and switch to the Calendar view.
2. Click New Event (or Meeting) on the Home tab.
3. Enter a title, attendees, date, and time.
4. On the ribbon, click Teams Meeting to toggle it on. A Teams join link appears in the event body.
5. Click Send.

Add Teams to an existing meeting

1. Open the event from your calendar.
2. Click Teams Meeting on the ribbon.
3. Click Send Update to notify attendees.

Tip: On Outlook for Mac, if you don’t see the Teams Meeting button, go to Outlook > Settings > Calendar and confirm Microsoft Teams is selected as your default online meeting provider.

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5. Make Teams the Default for Every Meeting

If every call you schedule is a Teams call, turn on the setting that adds a Teams link to every new event automatically. You won’t have to remember to toggle it.

New Outlook & Outlook on the Web

1. Click the gear icon (Settings) in the top right.
2. Go to Calendar > Events and invitations.
3. Turn on Add online meeting to all meetings.
4. Set the provider to Microsoft Teams.
5. Close the settings pane.

Classic Outlook for Windows

1. Go to File > Options.
2. Click Calendar in the left sidebar.
3. Under Calendar options, check Add online meeting to all meetings.
4. Use the linked provider dropdown next to that checkbox to confirm Microsoft Teams is selected.
5. Click OK.

Outlook for Mac

1. Go to Outlook > Settings > Calendar.
2. Under Online meetings, check Add online meeting to all meetings.
3. Confirm Microsoft Teams is selected as the provider.

Outlook Mobile

1. Tap your account icon in the top left.
2. Tap the gear icon (Settings).
3. Tap your account under Mail Accounts.
4. Scroll to Calendar and turn on Add online meetings to all meetings (labeled Events I create will be Teams meetings on older app versions).

From this point on, every new event you create will include a Teams join link. You can still toggle it off on individual meetings when a call shouldn’t be a Teams call.

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Troubleshooting: Teams Meeting Button Missing

The Teams button disappears most often in classic Outlook for Windows, but a few fixes cover almost every case.

Sign in to Teams first

The Teams add-in only registers when the Teams desktop app is running and signed in. Close Outlook, launch Teams, sign in, then reopen Outlook.

Enable the COM add-in

1. File > Options > Add-ins.
2. Set Manage to COM Add-ins and click Go.
3. Check Microsoft Teams Meeting Add-in for Microsoft Office.
4. Click OK and restart Outlook.

Check disabled items

If Outlook crashed with the add-in loaded, it may have been moved to the disabled list:

1. File > Options > Add-ins.
2. Set Manage to Disabled Items and click Go.
3. Select the Teams Meeting Add-in and click Enable.
4. Restart Outlook.

Reinstall the Teams desktop app

If the add-in isn’t listed under COM Add-ins at all, the install is broken. Uninstall and reinstall the Teams desktop app from microsoft.com/teams. The installer re-registers the Outlook add-in.

Classic vs. new Outlook confusion

The New Teams Meeting button is specific to classic Outlook. If you’ve switched to new Outlook (toggle in the top right of the app), there’s no button — Teams lives as a toggle inside the event compose window. Many “missing button” tickets turn out to be users who switched versions without realizing it.

Run Outlook as administrator (once)

Occasionally the add-in fails to register due to permission issues. Right-click Outlook, choose Run as administrator, then close it and reopen normally. This is only needed once.

Repair Office

If nothing else works, run an Office repair:

1. Open Settings > Apps > Installed apps.
2. Find Microsoft 365 (or Microsoft Office), click the three dots, and select Modify.
3. Choose Quick Repair first, then Online Repair if that doesn’t fix it.

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Quick Reference

Version	Button location	Default toggle	Add-in required?
New Outlook Desktop	Toggle inside new event window	Settings > Calendar > Events and invitations	No (built in)
Outlook on the Web	Toggle inside new event window	Settings > Calendar > Events and invitations	No (built in)
Classic Outlook for Windows	New Teams Meeting on ribbon	File > Options > Calendar	Yes (COM add-in)
Outlook Mobile (iOS/Android)	Toggle inside new event	Settings > Account > Calendar	No (built in)
Outlook for Mac	Teams Meeting on ribbon	Settings > Calendar	Teams desktop app installed

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Which Method Should You Use?

• Most users should just toggle it on in the event window. New Outlook, Outlook on the web, Outlook for Mac, and Outlook Mobile all work this way — fast, consistent, no add-in to worry about.
• Classic Outlook for Windows users get a dedicated New Teams Meeting button, which is slightly faster than opening a blank event and toggling. If the button is missing, follow the COM add-in steps above.
• Scheduling more than a couple of Teams meetings a day? Turn on Add online meeting to all meetings so every invite gets a Teams link automatically.
• Switching from classic to new Outlook? The Teams toggle moves from a ribbon button to a slider inside the event form — same result, different location.

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Stop Booking Meetings Manually

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More on Outlook: How to add Zoom to Outlook calendar · How to create a calendar event in Outlook · How to set up recurring meetings in Outlook · How to send calendar availability in Outlook · How to share your Outlook calendar · How to create a meeting poll in Outlook · Sync Google Calendar with Microsoft Outlook and Teams · How to add a calendar to Outlook

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