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Exclusive: EU antitrust regulators seeking more details on Microsoft in Slack case – sources

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Smartphone is seen in front of Microsoft logo displayed in this illustration taken, July 26, 2021. REUTERS/Dado Ruvic/Illustration/File Photo

EU antitrust regulators are seeking more information on Microsoft’s (MSFT.O) practices from rivals and other companies in a case triggered by’s (CRM.N) workspace messaging app Slack, people familiar with the matter said on Thursday.

The European Commission last month sent out another batch of questionnaires, a strong sign that the European Union’s competition enforcer is preparing the ground for opening a formal investigation, the people said.