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Microsoft Teams chat is the fastest way to coordinate with one person or a small group—without turning every conversation into a permanent public thread. Once you know where the chat controls live and how the message composer behaves, you can send, react to, and manage messages quickly across devices.
This guide covers the full chat workflow: starting a 1:1 or group chat, writing messages with mentions and attachments, editing and deleting sent messages, searching history, controlling notifications, and troubleshooting the most common failures.
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What Chat in Microsoft Teams (and How It Differs from Channels)
Chat in Microsoft Teams is meant for direct conversations. It can be 1:1 (one-on-one) or group chat. These chats are typically private to the participants unless your organization uses specific retention or compliance policies.
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| Feature | Chat | Channel |
|---|---|---|
| Audience | Selected people (private) | All members of the team/channel |
| Best for | Quick coordination, questions, side conversations | Project discussions and searchable, long-term context |
| Visibility | Participants only | Team members (channel access rules apply) |
| Default structure | Threaded replies and message history in the chat | Long-running thread-like discussions per channel |
Prerequisites and Where to Find the Chat Features
You need a Microsoft 365 or work/school account that has Teams enabled by your organization. If you can sign into Teams and see a left-side navigation rail, you’re ready to chat.
In most layouts, chat features live under the left navigation with items like Chat, Calendar, and Teams. The exact labels can differ, but you’ll typically find a way to start a new chat and access your chat history.
Start a Chat the Fast Way
To chat efficiently, start with the chat list’s New chat action, then pick people (for group chat) or a single person (for 1:1). Once you start, the composer is the same on every platform.
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Use the desktop client for the smoothest experience, including file drag-and-drop and quicker search through chat history.
- Open Microsoft Teams.
- In the left navigation, select Chat.
- Choose New chat (often a button near the top).
- Type a name or email in To.
- Select the person from the results.
- (Optional for group) Add more names to the same To field.
- Press Enter to place the cursor in the message box, then type your message.
- Select Send (paper-plane icon) to deliver it.
Web (teams.microsoft.com)
Web chat works the same way, but a few attachment workflows may feel slightly different depending on browser permissions.
- Go to
https://teams.microsoft.comand sign in. - Select Chat in the left navigation.
- Click New chat.
- Enter a name in To and select the right person.
- (Optional for group) Add more participants.
- Type in the message composer and click Send.
Android
On Android, the chat list and composer are designed for thumb-friendly navigation. You’ll find the “New chat” entry point near the top of the chat screen.
- Open the Teams mobile app.
- Tap Chat at the bottom (or from the menu, depending on your layout).
- Tap New chat (often a pencil/plus icon or a button near the top).
- Type a name in To and tap the correct profile.
- (Optional) Add additional people.
- Type your message, then tap Send.
iPhone and iPad
The iOS composer supports the same essentials—emoji, attachments (as allowed), and mentions—while keeping controls compact.
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- Open the Teams app.
- Tap Chat.
- Tap New chat.
- Enter a name/email in To and select a suggestion.
- (Optional) Add more people for a group chat.
- Type your message and tap Send.
Chat Types: 1:1 vs Group, and When to Use Each
Choose 1:1 for focused questions, approvals, or quick clarifications. Choose group chat when multiple people need to stay aligned without requiring a whole team channel.
In group chats, you’ll typically want to confirm everyone’s role early—otherwise decisions get lost across replies. If the conversation becomes a long-running project discussion, consider moving key updates to a channel.
How to Write a Message (Every Composer Control)
The Teams message composer is where most chat productivity lives. Depending on your tenant settings, you may see additional options like scheduling or special connectors.
Formatting, emojis, and basic text behavior
Most chat messages support rich text behaviors like line breaks. Emojis are usually available from the emoji button in the composer.
- Line breaks: Press Enter to send (desktop) in many setups; use Shift+Enter for a new line when applicable.
- Emoji: Use the smiley/emoji icon and insert directly into the message.
- Links: Pasting URLs typically turns them into clickable previews.
Mentions: @name and where they work
You can notify someone inside chat using @ mentions. Start typing after @ (for example, @sam) and select the person from suggestions.
- Mentions typically trigger a notification if their settings allow it.
- Mentions work in group chat and channel messages (with different audience behavior).
Attachments: files, images, and links
From chat, you can attach files and images. Exact attachment options depend on your organization’s security rules, but the common pattern is the attachment icon in the composer.
- Attach a file: Click the Attach or paperclip icon and select a file.
- Add from cloud: Some tenants show options like OneDrive or SharePoint file pickers.
- Images: Uploading images usually appears inline, and recipients can open/download them.
- Link previews: Pasting a link may show a preview card.
Watch for file size limits enforced by Teams/your tenant. When an upload fails, you’ll often see a retry prompt or an error toast.
Message reactions and follow-ups
Reactions let recipients acknowledge a message without typing. Use the React option on a specific message and choose an emoji (for example, 👍, ❤️, 😂).
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- If your team relies on reactions, set a convention for what each emoji means.
Replying and building context
Teams chat supports reply-style context so the conversation stays readable. You can reply directly to a message, which anchors the response to the original content.
- Use replies for Q&A inside a longer thread.
- In busy group chats, replies reduce ambiguity about which message you’re responding to.
Message options: Edit, delete, save, and more
When you hover over (desktop/web) or long-press (mobile) a sent message, you’ll typically see a menu of actions.
- Edit: Lets you correct a message you sent. Some tenants enforce an edit time window.
- Delete: Removes your message for everyone in the chat. Admin rules may affect how quickly delete works.
- More actions: May include save, copy, or manage message visibility based on your tenant.
If edit/delete options are missing, your organization may have disabled certain controls, or you might be viewing a message type that can’t be edited.
Use Advanced Chat Workflows
Beyond basic messaging, Teams chat supports workflow features that reduce back-and-forth.
Scheduling a message
Some Teams setups let you schedule messages. If your composer shows a Schedule send option (or a clock icon), you can choose a future date and time.
- Open the chat and start composing a message.
- Select Schedule send (or the clock icon).
- Set the date and time.
- Confirm the time zone if it’s requested.
- Select Schedule to queue the message.
If you don’t see scheduling, it’s usually a tenant/rollout feature rather than a device limitation.
Send privately vs forward/share content
Sometimes you’ll want to move an idea from one chat into another. Instead of retyping, use the “share” or “forward” style action available on certain message types.
- For attachments and links, you can often re-share by attaching the file again or copying the link.
- For meetings, cards, and structured messages, use the forward/share option when available.
Share a card, meeting link, or details inside chat
Teams can insert meeting links, polls, and certain cards into chat. This is especially common when coordinating live sessions or collecting decisions.
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- If your organization uses specific apps, you may see additional chat cards powered by those apps.
Search and find old chat content
Teams chat history can get large. Use search to find a keyword, person, or file reference.
- Go to Chat.
- Use the Search box at the top (exact placement varies).
- Type a keyword (for example, project code, file name, or person name).
- Filter by chat if your UI offers chat-specific filtering.
If you can’t find content you remember sending, check whether you’re signed into the same account and whether the chat participants are still the same.
Manage Notifications So Chat Doesn’t Become Noise
Chat notifications can be great for speed—and painful for focus. Teams lets you control banners, sounds, and what kinds of messages notify you.
Turn chat notifications on or off
Use your Teams notification settings to reduce interruptions. The labels can vary, but the structure is usually consistent.
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- Open Microsoft Teams.
- Select your profile picture (top-right) and then Settings.
- Go to Notifications.
- Adjust Chat notification toggles (banner/toast, mentions, and activity-based alerts).
Control chat banners and sounds
If you’re getting too many banners, reduce pop-ups or disable sounds for non-critical events. On desktop, this often pairs with OS-level notification settings.
- Set “Only show” options if available.
- Disable notification sounds if your device is already audible from other sources.
- On macOS and Windows, check system notification rules for Teams.
Reduce interruptions with notification settings
If you need uninterrupted work blocks, consider setting focus modes and “Quiet hours” via your organization’s policies or your OS. Many Teams deployments also integrate with Microsoft 365 notifications patterns.
Message Privacy, Retention, and Admin Policies
Even private chats can be subject to compliance and retention policies set by your organization. That means chat history might be searchable or archived depending on legal requirements.
- Retention policies: Admins can control how long Teams keeps messages.
- Access: Some organizations allow IT/compliance to access chat logs.
- Editing/deleting: Policies can affect how edit/delete behaves.
If you handle sensitive information, review your organization’s acceptable use and data retention guidelines. For matters like legal holds, assume messages are recoverable within the system’s retention window.
Troubleshooting: When Chat Fails or Looks Wrong
Most chat problems are fixable with a small set of checks: account status, connectivity, browser permissions, cache, and tenant restrictions.
I can’t see the chat or the chat list is empty
- Confirm you’re signed into the correct Microsoft account (work vs personal).
- Check the left navigation for Chat and confirm you’re not filtered to a different scope.
- On mobile, force-close the app and reopen it to refresh the chat list.
- On desktop/web, sign out and sign back in if the list doesn’t populate after a few minutes.
Messages won’t send (stuck on sending)
- Verify your internet connection. Switch Wi‑Fi to cellular (or vice versa) to test.
- Check if Teams shows service status issues in your organization (some tenants block outbound messaging during incidents).
- Try sending a short message (no attachments) to isolate whether the composer is the issue.
- If you recently updated Teams or your browser, fully refresh (desktop) or hard-reload (web) and try again.
Mentions don’t notify anyone
- Make sure you used @ mention correctly (select the suggested profile from the dropdown, not just a typed name).
- Ask the recipient to check their Teams notification settings for chat/mentions.
- If they’re in a meeting with focus/Do Not Disturb, notifications may be suppressed based on their configuration.
Attachments fail to upload
- Try a smaller file to rule out size limits.
- If the problem started after a browser update, test in a different browser for web access (for example, Chrome vs Edge).
- Confirm you have permission to access that file’s storage location (OneDrive/SharePoint permissions).
- For mobile, ensure the Teams app has photo/file permissions in your OS settings.
Search returns nothing
- Confirm you’re searching the right scope (chat history for the correct account).
- Try searching by a unique term like a file name or meeting title instead of a general phrase.
- Wait a bit if you just created the chat; indexing can lag.
- If the chat includes messages from before your tenant migrated platforms, search may not index older content immediately.
Comparisons: Chat vs Email vs Channels
Choosing the right Teams surface helps you keep the right context and the right audience.
- Chat: best for quick, private conversations and decisions among a few people.
- Email: best for external recipients or when compliance workflows require email-based approvals.
- Channels: best for lasting project documentation, repeated updates, and searchable history for a team.
If a thread becomes a recurring “status update” habit, migrating the key updates to a channel is usually the better long-term move.
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Common Questions
Can I chat with someone who isn’t in my organization?
Usually yes, but it depends on whether your organization supports external access (guest access) and whether Microsoft Teams policies allow it. If you don’t see the person in search results, you may need an admin to enable external chat or invite them as a guest to a team.
How do I make a group chat in Teams?
Select Chat → New chat, then add multiple names in the To field. Once you send your first message, the group chat appears in your chat list.
Can I edit or delete messages after sending?
Often yes. Hover (desktop/web) or long-press (mobile) the message to find Edit or Delete. The available time window can vary based on tenant settings.
Why can’t I see the attachment I received?
Check whether the attachment was shared to a restricted location (for example, a SharePoint/OneDrive file requiring permissions). If you don’t have access, ask the sender to resend or to share the file with the right permissions.
Does Teams chat get archived?
It can. Even if it feels private, retention and compliance policies may preserve chat history for a defined period. Admin settings determine how long and who can access it.
Final Thoughts
Chat in Microsoft Teams is at its best when you match the conversation to the right surface: 1:1 for focused questions, group chat for small-team alignment, and channels for long-running shared context. Once you master the composer tools—mentions, attachments, replies, and message actions—you’ll spend less time repeating yourself.
If something breaks, start with the basics: sign-in account, network connectivity, and whether your tenant policies restrict uploads, editing, or notifications. Those checks resolve the majority of chat issues quickly.
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