In any channel or direct message (DM), you can pin important messages to the conversation header and add bookmarks to keep track of useful links. All members of a conversation can access these items in the Pins tab and in Bookmark folder tabs.
Manage pinned messages
When you pin a message for the first time, it will automatically create a Pins tab in the conversation header. Open the tab to browse and manage the pinned messages in a conversation.
Pin a message
From your desktop, hover over the message you'd like to pin.
Click the three dots icon.
Select Pin to channel,or Pinto this conversation in a DM.
Tip: You can also pin messages from your mobile device. Tap and hold a message, then select Pin Message or Pin to Conversation.
Remove a pinned message
From your desktop, open a channel or DM, then click the Pins tab in the conversation header.
Hover over the message you'd like to un-pin and click the three dots icon.
Click Remove pinned item. If you remove items that someone else pinned, they'll receive a Slackbot message letting them know.
Bookmarks can be used to keep links to websites or external resources handy. When you create a bookmark, you'll add it to a folder in the conversation header.
Add a bookmark
From your desktop, open a channel or DM.
Click the plus button, select Bookmark Folder, enter a name for your folder then click Add. Or, select an existing bookmark folder.
Click Add Bookmark.
Paste a link, then add a name and emoji if you'd like.
Click Add.
Remove a bookmark
From your desktop, open a channel or DM.
Select the folder that contains the bookmark you’d like to delete.
Hover over the bookmark, then click the three dots icon.