Back when I attended Microsoft Inspire in 2019 I remember going to the pre-day at the Mandalay and being absolutely blown away by the numbers. Teams had hit 13 million daily active users (DAU), surpassing Slack for the first time. There was this nice chart which was unveiled to a lot of applause and fanfare - and that was before Gio Mezgec and the team rolled out the numbers they aimed for in fiscal 2020. Back then, they wanted to top 50 million Monthly Active Users (MAU) which constituted 275% growth over the following 12 months. Ambitious. Needless to say there was a lot of Teams sessions at Inspire 2019
2019 was, by all accounts, another triumphant year for Microsoft Teams. It won at Enterprise Connect for the second time in a row. It overtook it's principle competitor Slack in terms of Daily Active Users (DAU). It delivered a ton of new features including Private Channels which users had been waiting for for some time.