Migrating from Slack to Microsoft Teams is increasingly common as companies consolidate their Microsoft 365 stack. The switch can save $5–10 per user monthly if you already have Microsoft 365 licenses.
Here’s a practical migration plan.
Before You Start: Is the Switch Right?
Switch to Teams if:
- Your company already pays for Microsoft 365
- You heavily use Word, Excel, PowerPoint, and SharePoint
- You need larger meeting capacity (up to 1,000 participants)
- IT wants centralized admin and compliance controls
Stay on Slack if:
- Your workflow depends on Slack-specific integrations (Slack bots, workflows)
- Your team is developer-heavy and uses Slack’s API extensively
- You value threaded conversations (Slack’s threading is more natural)
- You’re a small team without Microsoft 365
For a detailed feature comparison, see → Slack vs Microsoft Teams
Phase 1: Plan Your Migration (Week 1)
Map Your Channels
Create a spreadsheet mapping Slack channels to Teams channels:
| Slack Channel | Teams Equivalent | Action |
|---|---|---|
| #general | General (default) | Auto-created |
| #engineering | Engineering team → General | Create team |
| #design | Design team → General | Create team |
| #random | Company-wide → Social | Create channel |
| #project-alpha | Project Alpha team | Create team |
Key difference: Slack uses a flat channel structure. Teams uses a hierarchical Team → Channel structure. You’ll need to decide which channels become Teams and which become channels within teams.
Audit Your Integrations
List every Slack integration and find the Teams equivalent:
| Slack Integration | Teams Alternative |
|---|---|
| Slack Workflows | Power Automate |
| GitHub notifications | GitHub for Teams app |
| Google Drive sharing | SharePoint / OneDrive |
| Jira updates | Jira Cloud for Teams |
| Custom Slack bots | Teams bots / Power Virtual Agents |
Phase 2: Export and Set Up (Week 2)
Export Slack Data
- Go to Slack Admin → Settings → Import/Export Data
- Choose Export (free plan: public channels only; paid: includes DMs and private channels)
- Download the ZIP file — this contains all messages in JSON format
Set Up Teams Structure
- Create your Teams and channels based on the mapping above
- Set up permissions and guest access policies
- Install essential apps from the Teams app store
- Configure notification defaults (Teams can be noisy — customize early)
Migrate Message History (Optional)
Microsoft provides a free migration tool for Enterprise customers. Third-party options include:
- Mio — maintains cross-platform messaging during transition
- BitTitan — enterprise migration with message history
- Manual approach — export important threads as PDFs for reference
Most teams find that migrating message history isn’t worth the effort. Pin important information as wiki pages in Teams instead.
Phase 3: Onboard Your Team (Week 3)
Key Differences to Train On
| Feature | Slack | Teams |
|---|---|---|
| Threads | Reply in thread (clean) | Reply in channel (less organized) |
| Search | Excellent | Good, improving |
| Calls | Huddles (lightweight) | Meetings (feature-rich) |
| Files | Upload to channel | SharePoint-backed storage |
| Status | Custom emoji status | Presence + custom message |
Tips for a Smooth Transition
- Run both tools for 2 weeks — let people adjust gradually
- Assign Teams champions — 1-2 power users per department
- Create a #teams-help channel (in Teams) for questions
- Set a cutoff date — announce when Slack will be read-only
Phase 4: Optimize (Week 4+)
After the switch, take advantage of Teams-specific features:
- Loop components — collaborative blocks that sync across chats and channels
- Power Automate — build automations that rival Slack Workflows
- Teams Phone — replace your phone system entirely
- Whiteboard — integrated visual collaboration
Common Pitfalls
- Notification overload — Teams defaults are aggressive. Help everyone configure notification settings on day one
- Too many Teams — Create Teams sparingly. 5-10 Teams for a 50-person company is plenty
- Ignoring training — Teams has a different mental model than Slack. Invest in onboarding
- Forgetting guests — If you had Slack Connect channels with external partners, set up guest access in Teams
Estimated Timeline
| Phase | Duration | Effort |
|---|---|---|
| Planning | 1 week | Medium |
| Setup & Export | 1 week | High |
| Onboarding | 1–2 weeks | Medium |
| Optimization | Ongoing | Low |
Total: 3–4 weeks for a complete migration.
Not sure which tool is right? Read our full comparison → Slack vs Microsoft Teams | Best Slack Alternatives
Frequently Asked Questions
How long does this take?
Most users can complete this process in 15-30 minutes by following the step-by-step guide above.
Do I need any technical skills?
No advanced technical skills are required. This guide walks you through each step with clear instructions.
What tools do I need?
See the requirements section above for the complete list of tools and accounts you’ll need to get started.