Create an announce-only channel

Announce-only channels are a great way to broadcast information to everyone in Slack. You can limit who can post to the channel and make it read-only for everyone else. Instead of the message field, members will see a message like this: Screen_Shot_2018-06-07_at_10.56.04_AM.png

Announce-only channels by plan


Set the #general channel as announce-only

Workspace Owners on any plan can set the #general channel to announce-only and decide who can post in it.

  1. From your desktop, click your workspace name in the top left.
  2. Select Administration, then Workspace settings from the menu.
  3. Click the Permissions tab.
  4. Next to Messaging, click Expand.
  5. Under People who can post to #general, make your selection.
  6. Click Save.


Set a multi-workspace channel to announce-only

On the Enterprise Grid plan, any multi-workspace channel can be set as announce-only. Below are instructions for how to do this at both the workspace and org level.

Workspace level

Org level

From a workspace, Org Owners and Admins — and members with permission to create multi-workspace channels — can set a channel as announce-only and decide who can post in it.

  1. Open a multi-workspace channel.
  2. Click the   gear icon to open the Channel Settings menu.
  3. Select Additional options.
  4. Under Manage posting permissions, choose who can post in the channel.
  5. If it's a default org-wide channel, you can check the box next to Allow members to start message threads. This allows people to add threaded replies to messages posted in this channel.
  6. Click Review, then Set posting permissions.

At the org level, Org Owners and Admins can also set default org-wide channel as announce-only:

  1. From your desktop, click your workspace name in the top left.
  2. Click Administration, then Organization settings.
  3. Click  Settings on the Admin Dashboard.
  4. Click Channel Administration.
  5. Under Default Channels, click Add a channel, choose a new default channel, then click Next. Or, hover over an existing channel, click the  three dots icon, and click Edit channel settings.
  6. Choose a membership type and who can post in the channel. You can also allow members to start message threads, if you'd like.
  7. Click Next, then click Save.
Who can use this feature?
  • Workspace Owners or Org Owners/Admins
  • Free, Standard, Plus, and Enterprise Grid plans

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