EU questions Microsoft rivals over Teams integration in Office

FILE PHOTO: Microsoft Teams app is seen on the smartphone placed on the keyboard in this illustration taken, July 26, 2021. REUTERS/Dado Ruvic/Illustration/File Photo

BRUSSELS (Reuters) - EU antitrust regulators are following up on a complaint by Slack Technologies by asking Microsoft's rivals if its Teams app integrated with its Office product gives it greater clout, in a sign that they could open an investigation.

In a questionnaire sent to rivals and seen by Reuters, the European Commission is focusing on the period 2016 to 2021. Microsoft introduced Teams in early 2017 to compete with Slack and others in the fast-growing workplace collaboration market.