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How to Integrate Slack With Microsoft Teams, Connect Easily 2026

Name: How to Integrate Slack With Microsoft Teams, Connect Easily 2026
Uploaded: 2026-06-13T13:18:29Z
Duration: 3 min 7 s
Description: Companies that use both Slack and Microsoft Teams often end up switching tools just to start a video call. This guide shows how to install the Microsoft Teams Calls app inside Slack, authenticate your Office 365 account, and set Teams as your default calling provider so you can launch meetings without leaving a channel. It's a practical fix for teams caught between two communication platforms.

By Impran M N

Companies that use both Slack and Microsoft Teams often end up switching tools just to start a video call. This guide shows how to install the Microsoft Teams Calls app inside Slack, authenticate your Office 365 account, and set Teams as your default calling provider so you can launch meetings without leaving a channel. It's a practical fix for teams caught between two communication platforms.

01Open the Slack App Marketplace

From your workspace tools panel, launch the App Marketplace and search for Microsoft Teams.

02Add the verified Teams Calls app

Select the official Microsoft Teams Calls integration and click 'Add to Slack' to start the deployment wizard.

03Authorize the integration

Review the requested workspace permissions and click Allow, then complete the browser redirect to sign into your Microsoft 365 account.

04Set Teams as your default calling provider

In your personal Slack settings, choose Microsoft Teams as the default option so calling shortcuts route through Teams instead of Slack huddles.

05Test the integration with a slash command

Type the /teams-calls command inside a channel to generate a meeting link that teammates can click to join directly.

FAQ

Frequently asked questions

Does this integration sync my Slack messages into Teams?

The basic Teams Calls integration mainly enables launching video meetings from Slack; deeper message synchronization requires additional connector bots.

Can any team member set up this integration?

Adding the app to the workspace may require admin approval depending on your Slack workspace's app permission settings.

Do I need a Microsoft 365 subscription to use this?

Yes, you'll need an active Office 365 account to authenticate and launch Teams meetings through the integration.

What happens if I click the call chip generated in Slack?

Clicking the rendered call chip opens the Teams meeting container directly, letting teammates join the video call without leaving their browser or app.