[blueboo]

The key difference is that an active user on Microsoft Teams is someone with an outlook mailbox, and an active user on Slack is someone who uses Slack

[SahAssar]

Are you claiming that microsoft counts "outlook daily active users" as "teams daily active users"? Cause the article specifies "daily active users", not "signed up" or anything like that.

[futhey]

They’re rebranding Skype for business as teams meetings, and pretty soon anyone who uses Office 365 for video calls for meetings will end up being counted as a teams user (even if they don’t sign in to teams or ever look at chat).

This isn’t too far off, although it’s new enough I doubt it has a massive impact on the 13m number.

[lewisj489]

That's not how it works.

[thaniri]

That's not how it works to a reasonable person, but marketers can count however best suits them.

[davidandgoliath]

As long as they don't mind fighting with the SEC, sure.

[finales]

As a former MSFT employee (on Azure), Teams daily active users are counted even when someone on Outlook hosts a meeting, which is automatically converted into a Teams meeting link. Therefore, unless an enterprise is still sticking with Skype, Teams users will automatically get trickled in from Outlook.

[elygre]

That would only be if they hosted an online meeting (an audio or video conference), not for any outlook meeting (i.e. a meeting booked with outlook doing scheduling, but meeting happening in a good old meeting room). And that is then comparable to slack video conferencing, so probably a fair comparison.