EU charges Microsoft with illegally bundling its Teams service with its Office package

The move by the EU competition watchdog was triggered by a 2020 complaint by Salesforce-owned competing workspace messaging app Slack

Teams was added to Office 365 in 2017 for free and subsequently replaced Skype for Business.

EU antitrust regulators on Tuesday charged Microsoft with illegally bundling its chat and video app Teams with its Office product and say that recent moves by the US tech giant to unbundle the package were insufficient and more needed to be done.

"Microsoft has breached EU antitrust rules by tying its communication and collaboration product Teams to its popular productivity applications included in its suites for businesses Office 365 and Microsoft 365," the European Commission said in a statement.