Restrict who can post in a channel

Some channels aren't meant for conversation: an official announcements channel, a management notices channel, a release channel. Until now, anyone who could see a channel could post in it. Now you can create a channel where only specific people post and everyone else just reads.

This feature is available on the Business Plus plan. In other workspaces, channels work exactly as before.

Three modes

• All: anyone with access to the channel can post. This is the default.
• Admins only: only project admins and the channel creator can start new posts.
• Selected people: a list you build yourself, plus project admins and the channel creator, who are always allowed.

Set it up

1. Open the channel and go to its settings.
2. Find the Who can post messages? section.
3. Choose one of the three modes.
4. If you chose Selected people, add the allowed members and save.

What exactly the restriction covers

• Restricted: creating a new post in the channel and forwarding a post to it.
• Not restricted: replying in an existing post's thread, adding reactions, turning a post into a task and creating reports.

This split is intentional: an announcements channel can still host questions and answers under each announcement without cluttering the channel's main stream.

A few use cases

• Management announcements channel: use Admins only. Every member reads the announcements, and if they have a question, they ask it in the thread under that announcement without cluttering the channel's main stream.
• Release channel: use Selected people with the release owners. The rest of the team just follows along.
• Daily report channel: use Selected people with the team leads. Members confirm they've read each post with a reaction.
• Open team chat channel: keep All. You don't need to change anything.

Who is always allowed

• Project admins
• The channel creator
• AI assistant replies and automatic posting of scheduled run results

Frequently asked questions

• How is this different from making a channel private? Privacy decides who can see the channel; this setting decides who can post in it. You can use both at the same time.
• What happens to earlier posts? They stay untouched. The restriction only applies from now on.
• What does a member who isn't allowed see? The message box is disabled for them, and the reason is shown.
• Can I open posting temporarily? Yes. Switch the mode back to All and restrict it again later. The change applies to everyone immediately.
• What happens if I remove someone from the selected people list? Their earlier posts stay in the channel; they just can't start new posts from then on.
• Does this apply to messenger bots too? Yes. A message sent to the channel through a bot follows the same rule.
• How can a project admin tell a channel is restricted? The channel settings show the selected mode and the list of allowed people.