Leave a Group Chat in Teams, or Quiet a Slack DM
In Teams, leaving a group chat removes you from the conversation; you need an invitation to return. In Slack, the documented way to quiet an ordinary group DM is Mute and hide. Neither action means deleting the conversation for everyone. Choose the result you want before reaching for the menu.
Miles Crawford
Choose by consequence, not by the button name
| What you want | Use | Do not assume |
|---|---|---|
| Stay involved, but reduce Slack DM alerts | Mute; in a group DM, Mute and hide | That you left the group or will see no badges |
| Exit a Teams group chat | More options > Leave | That you can rejoin without an invitation |
| Tidy a Teams one-to-one chat list | Hide | That you deleted the other person's copy |
| Remove a Teams one-to-one history from your list and search | Remove chat history | That you can still find the old chat through search |
| End a Slack Connect DM with another organization | Remove connection | That this is the ordinary internal group-DM mute control |
These are different controls with different effects. Our recommendation: if your only problem is noise, start with muting rather than an access-changing action. If you no longer own any work in the group, make the handoff clear before leaving.
Leave a Teams group chat
On desktop, find the group in your chat list, open More options, then select Leave. Microsoft says you will stop receiving messages and can return only if someone invites you again.
Read the confirmation before accepting. Microsoft's current hide/remove-history guide also describes a checkbox to remove chat history from your chat and search lists when you leave. Decide whether you need a permitted record or handoff link before taking that step. Do not copy confidential chat history somewhere new just to keep it.
On mobile, open the chat dashboard by selecting the group name at the top, choose Leave chat, then confirm Leave. The platform-specific guide shows iOS from the chat header and Android through More options > Chat details > Leave chat. Follow the path shown by your app.
Leaving is not discreet housekeeping. Microsoft's mobile guide says other people are informed when you leave. Your existing messages are not erased from the group history. If the conversation is a meeting chat, note the separate restriction: a meeting owner cannot leave or delete the meeting chat.
Quiet a Slack group DM
On desktop, open the DM and click the Notifications icon. In a conversation with more than one other person, select Mute and hide. For a one-to-one DM, clicking that icon mutes the conversation directly.
On mobile, open the DM, tap the names at the top, choose Settings & Details, then turn on Mute. This applies to that conversation, not every conversation containing those people.
Slack still shows some sidebar signals: numbered badges can appear when you are mentioned or receive a DM, and Threads can turn bold for replies to messages you sent in a muted conversation. Do not promise yourself that muting means complete invisibility.
If the muted DM remains in your sidebar, Slack documents a separate visibility choice: open Manage my sidebar at the top of Home and select Hide muted conversations or Show muted conversations. Hiding and muting are not evidence that you have exited the group.
Do not confuse internal DMs with Slack Connect
Slack has a separate procedure for ending a DM with someone outside your organization: open the DM, select the person's name, choose Remove connection, and confirm. The mobile path also starts with the person's name and uses Remove Connection.
Slack says the DM is archived and its messages and files remain viewable. That is a connection-ending action, not a substitute for muting an ordinary internal group DM. Check the person and organization before confirming.
Hide is different from removing Teams history
For a one-to-one Teams chat on desktop, More options > Hide temporarily removes it from your list. You can find it again through search. Remove chat history removes it from your list and search, affects only you, and does not remove the other person's copy.
This is why “delete the chat” is a poor instruction to give a coworker. Say which result you mean: hide it from the list, remove your own history, stop alerts, or leave the group. For a single message you sent, use the separate message edit/delete controls rather than a chat-level action.
A clear exit message is better than a mystery reaction
These are original examples to adapt, not required platform wording. Send a note when your departure changes who is watching the work. Do not announce every sidebar cleanup.
“My part of the launch is done. Morgan owns the remaining checklist in the launch channel, so I'm leaving this group chat. Please tag me there if the billing question comes back.”
This names the completed responsibility, the new owner, the destination and the exception. Only name an owner who actually accepted the work.
“I'm muting this DM while I finish the review. I'm still on the task and will post the result here by 3 PM. For anything urgent before then, use our agreed urgent channel.”
Use a real deadline and a real urgent route. Do not invent a response promise just to make the note sound reassuring. A wave or checkmark reaction can be friendly, but it should not carry the handoff on its own.
Before you confirm
- Check the chat name, participants and work account.
- Decide whether you need quiet, less sidebar clutter, or an actual exit.
- Move unfinished work only after the next owner agrees.
- Read any history-removal checkbox and the rejoin condition.
- Afterward, verify the result you chose instead of assuming a missing sidebar entry proves you left.
If you are trying to remove someone else, use the separate permissions and participant controls. That affects another person's access and should not be treated as your own notification cleanup.
Sources and scope
Official instructions checked October 28, 2026: Teams group-chat leaving and removal, Teams hide, history and meeting-chat differences, Teams mobile dashboard, Slack muting and badge behavior, Slack sidebar visibility, Slack DM basics, and ending Slack Connect DMs.
The choice table and message examples are our editorial recommendations. We checked the published instructions, not live actions inside a work account. App versions, organization settings and chat type can change which controls appear. The hero is conceptual artwork, not a screenshot.