Is Microsoft’s Claimed 250 Million Teams Monthly Active Users Believable?

Microsoft claims that Teams has “nearly” 250 million monthly active users, which is quite a jump for the 145 million reported in April. We take a closer look at the numbers to try and figure out how Microsoft arrived at such a number. It seems like they can get there by lumping the numbers for commercial, education, and personal users together, but that’s not the same as reporting a nice simple number for commercial usage.