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Microsoft Faces Major Antitrust Fine Over Teams Integration with Office 365

microsoft faces major antitrust fine over teams integration with office 365 business manchester

Microsoft is facing significant antitrust fines from the European Commission over bundling its Teams app with Office 365.

The allegations highlight concerns over fair competition, impacting competitors like Slack.

Historical Context

The accusations against Microsoft are the most severe since 2013. Back then, they were fined €561 million for not promoting rivals to its Internet Explorer browser. Now, the focus is on their Teams platform, which saw a surge during the pandemic.

User numbers for Teams skyrocketed from 20 million in 2019 to 300 million by 2023, according to Statista. The European Commission’s investigation suggests Microsoft holds a dominant global position in the professional ‘software as a service’ (SaaS) market.

Allegations of Unfair Competition

The Commission claims Microsoft has been unfairly tying Teams to Office 365, thus disadvantaging standalone messaging platforms like Slack.

Margrethe Vestager, executive vice-president for competition policy, stated, ‘Preserving competition for remote communication and collaboration tools is essential as it fosters innovation in these markets.’

Bundling Controversy

Microsoft’s strategy of bundling Teams with Office 365 gave it an unfair distribution advantage. Customers couldn’t opt out of acquiring Teams when subscribing to Office 365.

Microsoft announced plans earlier this year to unbundle Teams from some software packages sold in Europe. However, regulators found these changes ‘insufficient.’

More significant adjustments are deemed necessary by the European Commission. Brad Smith, Microsoft’s vice-chair and president, acknowledged the need to address these concerns.

Rival Complaints

The antitrust inquiry began last July after complaints from Slack Technologies and Alfaview, a German video conference software provider.

Niko Fostiropoulos, CEO of Alfaview, supported the Commission’s findings, asserting that Microsoft’s measures were inadequate as they continued to bundle Teams with Office 365.

Direct negotiations with Microsoft failed to resolve the competition concerns, according to Fostiropoulos.

Microsoft’s Response

Microsoft must now address these allegations and work with the European Commission to find a resolution that satisfies the regulatory body’s competition rules.

The outcome of this case could significantly impact the tech giant and the broader SaaS market.

Implications for the Market

The case could reshape how software companies bundle products and address competition rules.

A decision against Microsoft may lead to stricter regulations and influence business practices across the tech industry.


Microsoft is at a critical juncture, under scrutiny for its competitive practices.

The resolution of these antitrust allegations will likely have far-reaching implications for the tech industry.

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