If a conversation matters to more people than the ones talking right now, put it in a channel. If it is a quick exchange within a small, fixed group, use a group chat. If it is between you and one colleague, use a one-to-one chat. That is the short answer to Teams channels vs chats. Below you’ll find the reasoning behind each choice, plus a set of simple team agreements so you can still find a decision three weeks after it was made.
What is the difference between Teams channels and chats?
A channel lives inside a team. Every member of that team can see the posts in a standard channel, reply to them and search them. Conversations are organised as threads: one post, with its replies grouped underneath. Files shared in a channel are stored in the team’s SharePoint site, in a folder for that channel. They stay with the team when people change roles or leave.
A chat is a conversation between specific people. Only the people in the chat can see it. Messages run as one continuous stream, without threads. Files you share in a chat are stored in your own OneDrive and shared with the people in that chat.
Teams also offers private and shared channels for a narrower audience. They work like standard channels for everyone who has access, and the agreements later in this article apply to them too.
Two questions settle most choices. Who needs to see this, now and later? And does it belong to a piece of work, or only to the people who happen to be talking?
When to use a channel
Use a channel when the conversation belongs to a project, a department, a client or a recurring process. The test is simple: could someone who is not in today’s conversation need this later? A new colleague who joins the project next month, a manager who wants to know why a deadline moved, a teammate covering for you during the holidays. In a channel, they can scroll back and read the whole story.
Channels also suit anything the team keeps working on. A plan, a proposal or a planning sheet shared in a channel ends up in the channel’s Files tab, where everyone works on the same version. Share the same file in a chat and the copy lives in someone’s personal OneDrive, which makes it harder to find for anyone outside that chat.
Announcements and decisions belong in a channel as well. If you post them there, the team has one place to check, and you avoid repeating the same message in five chats.
To get the most out of a channel, start a new post for each new topic and give it a clear subject line. Replies go into that post’s thread. Use an @mention when you need a specific person to act, so they get a notification and the rest of the team doesn’t.
When to use a group chat
A group chat works well for a small group that needs to coordinate quickly for a short time. Three colleagues settling the agenda for a workshop. A few people sorting out who covers the phones on Friday. The conversation is fast, informal and of little use to anyone outside the group once it’s done.
Give every group chat a name. "Workshop agenda March" is easier to find than a chat titled with six first names. When you add someone to an existing group chat, Teams lets you choose how much of the earlier history they can see, so think about that before you click.
Group chats have one weak spot: decisions get buried. A choice made halfway through a long stream of messages is hard to find later, and colleagues outside the chat never see it. When a group chat produces an outcome the wider team needs, post a short summary in the relevant channel.
When to use a one-to-one chat
Use a one-to-one chat for anything that concerns only you and one colleague. A quick question, a check on whether someone has time for a call, personal feedback, or a topic that is sensitive and shouldn’t be visible to the team.
Watch for answers that would help others. If a colleague explains in a one-to-one chat how to submit an expense claim, others in your team probably have the same question. Post the answer in the channel so it can be found and reused, and you save the next person from asking again.
Simple team agreements that keep conversations findable
Teams works best when everyone uses it the same way. You don’t need a long policy. A handful of agreements, written down and shared, is enough to prevent most of the searching.
- One topic per post. Start a new channel post for each new subject and give it a subject line, so the channel reads like a list of topics.
- Reply in the thread. Keep follow-up questions under the original post instead of starting a new one.
- Decisions go in the channel. If something is decided in a chat or a meeting, the person who raised it posts a two-line summary in the channel.
- Files live in the channel. Upload working documents to the channel and share links in chats, so there is one version and everyone knows where it is.
- Name your group chats. Use a name that describes the topic, not the people.
- Mention with a purpose. Mention a person when you need them to act. Mention the whole channel or team only for news that really concerns everyone.
- Keep the channel list short. Start with the General channel plus one channel per project or recurring process, and add more only when a topic keeps coming back.
Put these agreements where people will see them. Pin the post that lists them in the General channel, and point new colleagues to it on their first day. After a month, check together which agreements stuck and which need adjusting.
A quick way to decide
When you’re about to type a message, ask yourself three questions.
- Will anyone outside this conversation need it later? Post it in a channel.
- Is it a small group coordinating for a short time? Use a named group chat.
- Is it only between you and one colleague? Use a one-to-one chat.
In doubt, choose the channel. A message in a channel that turns out to be relevant only to two people costs little. A decision hidden in a chat can cost the team an afternoon of searching.
