Microsoft 365 Copilot in Teams

Of all the surfaces Microsoft 365 Copilot lands in, Teams is where users tend to feel the impact first. Chat, meetings, and channels are the highest-volume content in most tenants, and Copilot turns that volume into something searchable, summarisable, and actionable.

Copilot in meetings

In a meeting with transcription enabled, Copilot can answer questions during and after the meeting:

• "What have they discussed so far?" — real-time catch-up if you joined late.
• "What are the action items?" — extracted into a list, with assigned owners where named.
• "Did anyone mention Project X?" — search the transcript by topic.
• "What was decided about pricing?" — summarise key decisions.

Post-meeting, meeting recap generates an AI summary with action items, decisions, and follow-ups, available on the meeting card in Teams for 30 days (longer with retention policies).

For meeting Copilot to work well, transcription must be enabled for the meeting. If users disable transcription for sensitive meetings, recap doesn't run. Tenant admins can configure default behaviour via meeting policies.

Copilot in chat

In any one-to-one or group chat, Copilot can summarise:

• "Catch me up on this chat" — summarise the last day's, week's, or month's messages.
• "What did Maria say about the launch?" — semantic search within the conversation.
• "What did we agree to do?" — extract commitments.

Useful for long-running chats with hundreds of messages where scrolling is impractical.

Copilot in channels

In a Teams channel, Copilot can summarise threads, generate replies grounded in the channel's recent activity, and answer questions about the channel's content (including files in the channel's SharePoint site).

Microsoft 365 Copilot Chat

The standalone Copilot Chat app inside Teams is the dedicated AI chat experience. It's where you write open-ended prompts — "draft an email to the team about the policy change," "summarise the Q3 roadmap doc" — and where you @-invoke custom agents built in Copilot Studio.

Free Microsoft 365 Copilot Chat (without a paid Copilot licence) is web-only and answers from the open web, without tenant grounding. The paid Microsoft 365 Copilot licence adds tenant data grounding and the in-app experiences.

Agents in Teams

Custom Copilot Studio agents can be installed in Teams as apps. They appear in the side bar and can be invoked from any chat or channel. This is a natural surface for line-of-business assistants — IT helpdesk agent, HR policy agent, sales product agent.

Common pitfalls

• Transcription off = no meeting recap, no Q&A about the meeting.
• Short retention on Teams chats = Copilot doesn't see old messages.
• External meetings — Copilot in meetings respects external-meeting policies; some Copilot features are restricted for cross-tenant scenarios.
• Latency — Copilot responses take a few seconds; users used to instant chat may experience this as slow.

Of the Microsoft 365 Copilot surfaces, Teams is the one where users spend the most time noticing the value. Get this surface right and adoption follows.