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Fix a Wrong Message in Slack and Teams: Edit, Unsend or Correct in a Reply

Everyone sends the wrong message at some point: a typo, the wrong channel, a wrong date. Slack and Teams both let you fix it. The harder question is whether to fix it quietly or say so out loud. This guide covers how editing and deleting work in each tool according to their help pages, and a simple way to decide.

Miles Crawford

Miles Crawford

4 min read
A pencil with an eraser gently correcting a chat bubble on a desk, with an undo arrow and a second bubble carrying a check mark, while a person watches with a relaxed smile
This image was generated with AI

What you can do in Slack

Slack's help says members can edit and delete messages they have sent if owners and admins allow it. By default any member can edit, and owners and admins can restrict that. On desktop, hover over the message, click the three dots icon, choose Edit message and select Save Changes. On mobile, tap and hold the message and choose Edit Message.

Slack also has an unsend shortcut on desktop. Press Cmd+Z on a Mac or Ctrl+Z on Windows, then confirm with Unsend. This works only within 15 seconds of sending, only if you have not left the conversation, and only if the message box is empty. The message is removed from the channel and its content, including files, returns to the message box so you can fix it and resend. Slack says unsending is currently only available on desktop.

To delete, use the three dots menu and choose Delete message, then confirm. Slack says deleting is permanent, and that it is not possible to bulk delete messages. Owners and admins can delete members' messages in the channels and group DMs they are part of. Owners on paid plans can also set a retention policy that deletes messages automatically after a set time.

What you can do in Teams

Microsoft says you can edit any message you sent to a chat or channel. Hover over it, select Edit, change the text and select Done. There is no limit to how many times you can edit a sent message. To delete a sent message, go to it and choose More options, then Delete. If you delete one by mistake, go to the deleted message and select Undo. On mobile, press and hold a chat message, or open More options for a channel message, to reach the same options.

If you cannot edit or delete a sent message, Microsoft says it may be due to settings from your IT admin, so ask them.

Quiet edit or visible correction

The tools make fixing easy. The judgment is up to you. This is our suggestion, not a rule from either product:

  1. Typo or formatting, nobody has acted on it. Edit it quietly.
  2. Wrong channel, nothing sensitive. Unsend or delete it, and post it in the right place. A short "moved to the right channel" is enough if people replied.
  3. A fact, date, time or number changed. Edit the message and add a reply that says what changed, for example "Correction: the review is Thursday, not Wednesday." People who already read the first version will not see a silent edit.
  4. Someone already acted on the wrong version. Do not rely on an edit. Reply or message them directly with the correction.
  5. You shared something you should not have. Delete it, then tell the right person at your company straight away so they can decide what else is needed. A delete does not undo who has already seen it.

If the correction is a decision people will need later, pin the corrected version. Where there is a discussion, keep the correction in the same thread so the history stays together.

What to be careful about

  • Edits can change what people agreed to. Changing a message after others replied to it can make their replies look wrong. Add a visible note instead of rewriting.
  • Saved copies follow edits. In Teams, a message saved by someone reflects later edits, and a deleted one stays in their list with a deleted note. Our saved messages guide explains this.
  • Deleting is not a safe place for secrets. If a password, key or personal data went into a chat, follow your organization's security process, which usually includes changing the secret.
  • Records and compliance. Some workplaces keep or retain messages by policy, so a delete may not remove every copy. Check your workplace's rules before relying on it.
  • Emoji can fix a tone problem too. If a message came out sharper than you meant, a short follow-up with a friendly emoji such as 🙂 often does more than an edit, though it will not replace saying sorry when it is owed.

Sources

Checked October 16, 2026. The steps, the 15 second unsend window and the limits follow each product's own help articles. The decision list and cautions are our suggestions.