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Chronicles

The story behind the story

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Slack says it added around 7,000 new customers in the 47 days between February 1 and March 18, compared to the 5,000 it added in its most recent quarter

Today, Slack, a popular internal chat application, announced that it added 7,000 new customers between February 1 and March 18.  That is 47 days.

TechCrunch

Context & Ripple Effects

Slack's growth arc had already been steep before this: the company went from 500K daily active users and $12M ARR in its first year to 10M DAUs and 85,000+ paying customers by early 2019, but paid-customer additions had settled into a steady quarterly rhythm — roughly 5,000 per quarter by the most recent count.

What changed in this report is the slope: 7,000 new customers in just 47 days, a run-rate several times the quarterly pace, arriving weeks into the shift to distributed work. Within days, Slack's CEO was publicly touting 9K net new customers with the stock up 14%+, and the surge proved durable enough that by Q3 the company reported 12K net new paid customers, up 140% YoY.

First-order effects

  • Slack's customer acquisition rate jumps from ~5,000 per quarter to 7,000 in under seven weeks, directly accelerating its paid-customer base and giving the company a headline metric to market ahead of earnings.

Second-order effects

  • The spike converts into financial validation within weeks — the CEO's follow-up disclosure of 9K net new customers moved the stock up 14%+ and then 10%+ on consecutive days, showing the market repricing Slack on acquisition velocity rather than revenue alone.
  • The influx of free and newly paid teams feeds Slack Connect, which by Q3 had grown to 520K+ connected endpoints, up 240% YoY — each new customer pulling its external partners into Slack's network.

Third-order effects

  • If crisis-era signups stick, the pattern points at the [[concepts#subscription-growth-gap|subscription growth gap]] closing in Slack's favor: a step-change in the customer base that compounds into recurring revenue rather than a temporary spike, as the 140% YoY jump in Q3 net new paid customers suggests.

The trend: Distributed-work tools are converting a sudden shift to remote work into a durable, compounding paid-customer base rather than a one-quarter spike.

Discussion

  • @arnoldkim Arnold Kim on x
    Who measures in 47 day increments? https://twitter.com/...
  • @profgeraintrees Geraint Rees on x
    I have to say having never used it before last week, and now using it 24/7, Teams is pretty good.... Slack and Microsoft fight for millions of remote workers https://www.ft.com/... via @financialtimes
  • @nmasc_ Natasha Mascarenhas on x
    Slack adds 7,000 customers in 7 weeks — as the use cases for it amid social isolation grow. https://techcrunch.com/...
  • @daveleeft Dave Lee on x
    Slack vs Microsoft in the battle for the new home workers. Slack has added 7k paying users since start of Feb - up 40% on typical levels https://www.ft.com/...
  • @jsnover Jeffrey Wfh Snover on x
    Teams is rocking it! https://twitter.com/...
  • @chriscapossela Chris Capossela on x
    In these last 3 years, I'm so proud to see the way @MicrosoftTeams has helped enable #collaboration & creativity for the 44 million people who rely on it to stay connected. In times like these, it's important to enable work, distance learning and a sense of community. #RemoteWork…
  • @wonderworkshop Wonder Workshop on x
    Raise of 🤚🏼🖐🏾s who is using #microsoftteams? Check it out. They are adding hand raises into their systems. So very helpful with students being remote and eager to answer - even Dash could use it. ☺️ https://www.microsoft.com/...
  • @benbajarin Ben Bajarin on x
    Impressive scale by MS Teams. Every collaboration platform we talk to is up in usage significantly. Which was expected. However, they are all revealing their cracks as well. No perfect tool yet, if ever. https://twitter.com/...
  • @maryjofoley Mary Jo Foley on x
    Microsoft Teams usage up by 12 million in the past week, hitting 44 million daily active users. Plus a bunch of new Teams features are coming. More info: https://www.zdnet.com/...
  • @mtholfsen Mike Tholfsen on x
    COMING SOON: “Hand Raise” ✋ for @MicrosoftTeams meetings! Great for #RemoteLearning scenarios, check out the video 👇 Details in the 3 year Teams Anniversary blog link #DistanceLearning #MIEExpert #MicrosoftEDU Blog 👉 https://www.microsoft.com/... https://twitter.com/...
  • @ldignan Larry Dignan on x
    Accenture stood up a client on Microsoft Teams to 61K workers from 0 in 5 days https://www.zdnet.com/... and COVID-19 appears to be a Teams accelerator. https://www.zdnet.com/...
  • @epro Emil Protalinski on x
    Some numbers for context - Slack: 12 million DAUs as of October - Microsoft Teams: 32 million DAUs on March 11 - Microsoft Teams: 44 million DAUs on March 18 COVID-19 added one Slack to Microsoft Teams' DAUs in just a week. https://venturebeat.com/...
  • @tomwarren Tom Warren on x
    Microsoft thinks the coronavirus pandemic is a turning point for remote working. “We're going to look back and realize this is where it all changed. We're never going to go back to working the way that we did.” https://www.theverge.com/...