How to integrate Microsoft Teams and Slack in a few steps

Milan Stanojevic
by Milan Stanojevic
Windows & Software Expert
Milan has been enthusiastic about PCs ever since his childhood days, and this led him to take interest in all PC-related technologies. Before joining WindowsReport, he worked as a front-end web developer. Read more
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Doing your job at the office would be a lot harder if you couldn’t communicate with your team members and colleagues. That is why there are plenty of collaborative software tools available for companies to use

One such collaborative program is Slack. Slack is a cloud-based instant messaging tool that allows people to group up together in channels known as Workplaces.

Another good example of a great collaborative tool is Microsoft Teams. It combines persistent workplace chat, video meetings, file storage, and application integration.

These two services sound very familiar and serve a common purpose, so integrating one’s feature into the other was bound to happen at one point of another.

How can I integrate Slack and Microsoft Teams?

1. Use Web services

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Several web services out there offer you the chance to integrate Slack and Microsoft Teams with each other.

Some of the most popular ones are the following:

The great part about these tools is that they all pretty much function in the same way:

  1. You have to go to anyone of these websites
  2. Input both your Slack and Microsoft Teams‘ login credentials
  3. Click on a Connect or Link button

One thing you should remember about these services is that they only work with the browser versions of Slack and Microsoft Teams. As such, if you are going to be using the two constantly, you might as well go ahead and uninstall the desktop clients.

Additionally, some of these services aren’t free, which is kind of disappointing given how they are used to connect two free services together.

2. Use APIs and bots slack teams

Microsoft made a Slack connector available in its connector inventory. It enables some Slack and Microsoft Teams crossover, and you will benefit from functionality like joining a Slack channel and can even set triggers for certain events.

As you may have noticed, there aren’t many things that you can do if you want to integrate Microsoft Teams with Slack. The lack of direct integration features between the two services probably stems from the fact that the two are actually in direct rivalry with each other.

Whichever the case, if you want to integrate some of Microsoft Teams‘ functionality into Slack and vice-versa, at least you now know that it can be done, albeit in a limited fashion.

Do you think Slack and Microsoft Teams should be able to integrate with each other more directly?

Let us know what your opinions on the matter are in the comment section below.

  1. Slack has a more user-friendly and intuitive UI and it’s easier to set up. Microsoft Teams has a bigger learning curve and the setup is more complex.
  2. Microsoft Teams is aimed at large enterprises. Slack is excellent for both small businesses and enterprises.
  3. Microsoft Teams offers flawless and complete Office 365 integration, while Slack offers limited Office 365 integration.
  4. Slack has a message history limit of 10K messages. If you want to access messages beyond that limit, you need to upgrade your plan. On the other hand, Teams offer unlimited message history access.
  5. You can host meetings of up to 250 participants on Teams, while Slack meetings can accomodate a maximum number of 15 participants.
  6. Screen sharing is available on all Teams plans, while Slack supports this feature only on paid plans.
  • What big companies use Slack?

Thousands of big companies and enterprises rely on Slack for employee collaboration. Some of the biggest companies using Slack internally include BBC, IBM, Airbnb, Pinterest, Dropbox, Medium, Vodafone, RBC, The Fox Broadcasting Company, Hubspot, Intuit, Trivago, Shopify.

If you want to see what other companies are using Slack, visit Slack’s Customer Stories page.


Frequently Asked Questions

  • Microsoft does not use Slack. As a matter of fact, the Redmond giant placed Slack on the list of prohibited software for their employees. This means that Microsoft employees are not allowed to use Slack at work to complete their daily work tasks.

  • Here are the key differences between Microsoft Teams and Slack:

    1. Slack has a more user-friendly and intuitive UI and it’s easier to set up. Microsoft Teams has a bigger learning curve and the setup is more complex.
    2. Microsoft Teams is aimed at large enterprises. Slack is excellent for both small businesses and enterprises.
    3. Microsoft Teams offers flawless and complete Office 365 integration, while Slack offers limited Office 365 integration.
    4. Slack has a message history limit of 10K messages. If you want to access messages beyond that limit, you need to upgrade your plan. On the other hand, Teams offer unlimited message history access.
  • Thousands of big companies and enterprises rely on Slack for employee collaboration. Some of the biggest companies using Slack internally include BBC, IBM, Airbnb, Pinterest, Dropbox, Medium, Vodafone, RBC, The Fox Broadcasting Company, Hubspot, Intuit, Trivago, Shopify.

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