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?
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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.