Microsoft Teams rolls out as a free, on-by-default feature to Office 365 business users worldwide, with 150 integrations available or coming soon
Microsoft's Slack competitor is rolling out to Office 365 business users worldwide starting March 14. More features are still to come, including guest access, in late June.
Context & Ripple Effects
Microsoft first put Teams in front of commercial customers as an opt-in preview across 181 countries in November 2016, positioning it as the chat layer built into Office 365 rather than a separate product. Today that bet pays off at scale: the app flips to on-by-default for every Office 365 business user worldwide, with integrations across the Office suite, SharePoint, and PowerBI expanded to a catalog of 150.
The rollout matters because it changes how Slack gets bought against: Teams no longer has to win an evaluation, it ships pre-installed with a subscription most enterprises already pay for. Guest access promised for late June extends the battleground past internal employees.
First-order effects
- Every Office 365 business tenant gets Teams enabled automatically starting March 14, putting the tool in front of admins and end users who never chose it — and giving Slack's sales teams an installed-base objection to overcome in every renewal conversation.
Second-order effects
- Bundling turns chat from a standalone purchase into a suite feature, pressuring Slack to compete on product depth and integrations rather than price, while the 150-integration catalog pulls third-party SaaS vendors toward building for whichever hub has the default distribution.
Third-order effects
- If the pattern holds — and the trajectory suggests it does, from 125K organizations by late 2017 to 500K organizations including 91 of the Fortune 100 by early 2019, plus a free tier in 2018 reaching non-paying users — workplace collaboration consolidates around whoever owns the productivity suite, with standalone chat tools pushed upmarket or into niches like developer workflows.
The trend: Workplace messaging is being absorbed into productivity suites as a bundled default, shifting competition from per-seat feature battles to distribution through existing enterprise subscriptions.