Supplemental Slack info for you and your team.Tips and tools for beginners and experts alike.Get familiar with Slack Enterprise Grid for large organizations.If you're curious about what's new in Slack — and what's changed — you're in the right place.Develop your skills and prepare to become Slack Certified!Launching a new team or joining one for the first time?
Our easy-to-read guides help your team work better, together, from day one.Ready to level up? Browse our time-saving tricks and practical tips for
making Slack work for you.All kinds of teams thrive with Slack — take a look at our department-specific guides.
More coming soon!Learn how Slack works, from top to bottom!Want to learn more about setting up your team? Look no further!Welcome to Slack! We're so glad you're here. Let's get started!Adjust your profile and preferences to make Slack work just for you!Simplify your daily work with apps and tools.Tips and tools for beginners and experts alike.
Slack is experiencing some connectivity issues — please stand by. Check
Tip: On an Android device, you can double-tap a message to quickly edit it.
See how it works
Unsend a message
When you’ve sent a message and notice it’s not quite right, you can unsend it to fix your typo, add in that missing emoji and then send it off when it’s truly ready. Unsending messages will remove the message from the channel and return the content, including files, to the message input, where you can edit the message to resend or delete it. You can unsend a message when:
It is within 15 seconds of sending the message.
You do not navigate away from the conversation.
The message input is empty.
From your desktop, press Cmd+Z (Mac) or Ctrl+Z (Windows).
Select Unsend to confirm.
If you’d like, check the box next to Don’t show me this again.
Note: Deleting a message is permanent, so please proceed with care.
Hover over the message you’d like to delete.
Click the three dots icon.
Click Delete message.
Select Delete to confirm.
Tap and hold the message you’d like to delete.
Tap Delete Message.
Tap Delete Message again to confirm.
Note: It's not possible to bulk delete messages. Owners and admins can delete a channel to remove all its messages. Owners on paid plans can also set a retention policy to automatically delete messages after a certain amount of time.