# Salesforce and its app Slack have filed a lawsuit against Microsoft in London.

*business · news · 2026-04-27 · The Economic Times*

## Key points

- Slack and Salesforce sued Microsoft in London's High Court on April 23 for anticompetitive behavior.
- The lawsuit alleges Microsoft harms competition by bundling Teams with other products to restrict choices.
- Microsoft previously reached an agreement with the EU to offer Office products without Teams at reduced prices.
- Slack's new lawsuit follows its 2020 complaint to the European Commission about Microsoft bundling Teams.
- In the same week, Microsoft's cloud business practices faced a certified mass lawsuit in the UK.

**Companies:** Microsoft, Salesforce, Slack Technologies LLC
**Countries:** United Kingdom, United States

[Read the full story on The Economic Times](https://economictimes.indiatimes.com/tech/technology/microsoft-facing-uk-antitrust-lawsuit-from-slack-over-teams-bundling/articleshow/130558787.cms)

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