Why do Teams users switch to Slack? A UX comparison guide

Spotlight

PAGE: https://alison.com/course/managing-project-teams

PROMISE: Apply team dynamics frameworks to judge whether Slack or Teams fits your culture.

WHO: Leads and managers preparing to standardize communication tools across mixed groups

WHYNOW: Communication tool choice impacts project closing efficiency and team dynamics immediately

DESC: Learn about how to properly build, nurture, and manage your team. Also, utilize strategies when managing a working team, and effectively close out a project.

BEFORE: Slack feels chaotic while Teams feels rigid, and you cannot quantify the difference

BEFORE: Decisions are based on vendor marketing rather than team behavior

BEFORE: You lack a framework to assess how communication tools affect group cohesion

AFTER: You can map specific platform features to known group dynamic patterns

AFTER: Decisions reference measured team momentum and interaction requirements

AFTER: You apply a structured lens to evaluate closing and debriefing capabilities

GAIN: A definition of group dynamics to audit current tool fit

GAIN: A concept of team momentum to anticipate workflow changes

GAIN: A checklist of project closing areas to verify tool functionality

STEP: You struggle to explain why certain tools feel disjointed for your specific group || Define group dynamics || Assess if Slack or Teams supports your current team interaction patterns before switching

STEP: You cannot articulate how team performance changes when communication channels shift || Define Team Momentum || Predict which tool preserves or disrupts the pace of your collaborative workflow

STEP: You lack criteria to evaluate how a new tool handles project wrap-up and reflection || Identify the three different areas of closing out a project || Choose the platform that best supports structured debriefs and final deliverables

NOTFOR: Users who already have a definitive technical preference and need only API docs

NOTFOR: Teams that strictly follow command chain models without needing collaborative analysis

FACT: Average duration: 1.5-3 Hours (Contains Video)

FACT: CPD-accredited certificate available

FACT: Beginner level

COVERS: Distinguish between a primary and secondary stakeholder

COVERS: Define group dynamics

COVERS: Identify some examples of nonverbal communication cues

COVERS: Outline the three key areas that help you to understand interaction within a team

COVERS: Define Team Momentum

COVERS: Identify the three different areas of closing out a project

COVERS: Outline three different factors that affect Debriefing

COVERS: Management

COVERS: Team Building

COVERS: Project Management

COVERS: Business Management

MODULE: Knowing Your Team || Knowing Your Team | Interaction Within a Team | Communication Within the Team | Identifying Standards

MODULE: Managing Your Team || Identifying Management Needs | Providing Feedback | Maintaining Team Momentum | Identifying Management Challenges | Closing Out a Project

What you are probably seeing

You see an increase in support tickets asking where to find old discussions because team members keep starting direct chats instead of posting in shared channels.

Your onboarding docs show repeated confusion about how to archive conversations or move context from a private chat to a public channel for new hires.

Why it happens

Teams merges chat and channel features in a way that makes temporary private conversations difficult to convert into long term team knowledge without manual workarounds.

Slack provides a more intuitive separation between ephemeral DMs and persistent public channels which reduces cognitive load for users looking for specific information.

What changed recently

2026-10-07 · slack vs microsoft teams
Microsoft Community users are now mapping the Teams vs Slack gap:
• The chat vs channel distinction in Teams was unclear to users.
• Unclear UX structure was a major reason for switching to Slack.
Source: autocomplete

Step by step

1. Audit your current channel naming conventions to identify groups where users frequently open duplicate private chats instead of posting publicly.

2. Set a clear team norm that all project specific discussions must start in a dedicated channel rather than a direct message thread.

3. Review your channel archive settings to ensure important conversations are preserved and searchable before the default retention period expires.

4. Test the guest user experience in both platforms to see which one allows external partners to join specific discussions without full account access.

5. Hold a brief session with your team to demonstrate the difference between a private chat and a public channel and define when to use each.

Ways to go further

Start here: Managing Project Teams For when you want to evaluate Slack vs Teams before a decision. Open the free course on Alison ↗

Better fit: Microsoft Teams For when you want to learn how to set up communication in Teams. Open the free course on Alison ↗

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