Migration GuideSaaS Tools

How to Migrate from Microsoft Teams to Slack

A complete step-by-step guide to switching from Microsoft Teams to Slack, including what breaks, what improves, and a hands-on migration checklist.

Difficulty

Moderate

Estimated Time

2-4 weeks

Data Portability

Moderate

What Breaks When Migrating from Microsoft Teams

Deep Microsoft 365 co-authoring integration
Teams Meeting and webinar functionality
Power Automate workflows connected to Teams
SharePoint and OneDrive file tab integrations
Teams Phone System (if using Teams as PBX)

What Improves with Slack

Faster, more focused messaging experience
Superior app directory with 2,600+ integrations
Slack Connect for seamless external collaboration
Better threaded conversations and search
Custom Workflow Builder for no-code automations

Microsoft Teams to Slack Migration Checklist

Audit Teams setup: teams, channels, tabs, connectors, and bots

Map Teams channels to Slack channels and workspace structure

Export Teams conversation history via compliance export or eDiscovery

Set up Slack workspace: channels, user groups, permissions

Migrate shared files to Slack-connected storage (Google Drive, Dropbox)

Install Slack apps for key integrations (Jira, GitHub, Zoom)

Set up Slack Connect channels for external partners

Build Workflow Builder automations to replace Power Automate flows

Train users on Slack shortcuts, threads, and channel etiquette

Set Teams to read-only for transition period, then decommission

Should You Switch from Microsoft Teams to Slack?

Switch to Slack If...

Developer-focused teams wanting superior integrations, companies needing external collaboration via Slack Connect, and organizations frustrated with Teams' slow performance and complex UI.

Stay with Microsoft Teams If...

Organizations deeply embedded in Microsoft 365, companies using Teams Phone System, and enterprises that need unified video + chat + files in one Microsoft platform.

Microsoft Teams to Slack Related Resources

Microsoft Teams Review

Full review & pricing

Slack Review

Full review & pricing

Microsoft Teams vs Slack

Side-by-side comparison

Microsoft Teams to Slack Migration FAQ

How long does it take to migrate from Microsoft Teams to Slack?

The typical migration from Microsoft Teams to Slack takes 2-4 weeks, depending on data volume, customizations, and team size. We recommend running both tools in parallel during the transition.

What data can I transfer from Microsoft Teams to Slack?

Data portability is rated "Moderate" for this migration. Most core data (contacts, records, content) can be exported and imported, but custom configurations, automations, and integrations typically need to be rebuilt manually.

What breaks when switching from Microsoft Teams to Slack?

Key things that may break: Deep Microsoft 365 co-authoring integration; Teams Meeting and webinar functionality; Power Automate workflows connected to Teams. Plan for these disruptions by mapping alternatives before starting the migration.

Is it worth switching from Microsoft Teams to Slack?

It depends on your needs. Slack improves: Faster, more focused messaging experience; Superior app directory with 2,600+ integrations. However, you should stay with Microsoft Teams if: Organizations deeply embedded in Microsoft 365.

Need Help Deciding?

Compare features, pricing, and ratings side by side before making your switch.

Compare Microsoft Teams vs Slack