Invite external organizations to share a channel

With Slack Connect, you can invite external partners to share a channel in Slack, allowing you to collaborate from your separate workspaces.

What to expect

  • Your organization invites other organizations (up to 19) to join one of your channels, and invited organizations can accept or decline the invitation.
  • If accepted, the invitation may need to be approved before the channel is shared, depending on each organization’s settings.
  • Invitations expire after seven days. If an invitation expires before it’s accepted or approved, you can copy a new invitation link to share.

Note: To share a channel, every participating organization must be using one of Slack’s paid plans. If you're using the free version of Slack, learn how to upgrade your workspace.


Channel ownership

With Slack Connect, an organization either owns a channel or is invited to share one. Channels that originate from your workspace or Enterprise Grid org are owned by your organization. Only the organization that owns a channel can do the following:

  • Invite other organizations to share the channel.
  • Remove organizations from the channel.
  • Continue using the channel if it’s no longer shared (the channel will be archived for other organizations).


Invite other organizations to share a channel

Note: Owners and admins can choose to restrict permissions for sending and accepting invitations to share channels. If you don’t see the option to send an invitation, find an owner or admin and ask for help.

Create and share a new channel 

Desktop

iOS

Android

  1. From your desktop, click your workspace name in the top left.
  2. Select Create a channel from the menu.
  3. Enter a channel name and a description, and decide if you’d like to make the channel private. For more details, see Create a channel.
  4. Check the box next to Share outside [your workspace name], then click Next.
  5. Enter the email address(es) you’d like to send an invitation link to, then click Send. You can also click Copy share link to share an invitation link outside of Slack.
  6. Click Done.
  1. Tap the  Home tab at the bottom of the screen.
  2. Tap the  plus icon next to Channels.
  3. Tap Create in the top-right corner.
  4. Enter a channel name and a description, and tap the toggle next to Public if you’d like to create a private channel. For more details, see Create a channel.
  5. Check the box next to Share outside [your workspace name].
  6. Tap Share a Link to share an invitation link outside of Slack. You can also tap Choose from Contacts to search for and select the contacts you’d like to send an invitation link to.
  7. Tap Done.
  1. Tap the  Home tab at the bottom of the screen.
  2. Tap the  plus icon next to Channels.
  3. Tap the  plus icon in the bottom-right corner.
  4. Enter a channel name and a description, and tap the toggle next to Public if you’d like to create a private channel. For more details, see Create a channel.
  5. Check the box next to Share outside [your workspace name].
  6. Tap Share a Link to share an invitation link outside of Slack. You can also tap Choose from Contacts to search for and select the contacts you’d like to send an invitation link to.
  7. Tap Done.


Share an existing channel

When you share an existing channel, members of other organizations can view the channel’s message history, members, and bots.

Desktop

iOS

Android

  1. From your desktop, open the channel you'd like to share.
  2. Click  details in the top right.
  3. Click Organizations.
  4. Select Share Channel.
  5. Enter the email address(es) you’d like to send an invitation link to, then click Send. You can also click Copy share link to share an invitation link outside of Slack.
  6. Click Done.
  1. Open the channel you'd like to share.
  2. Tap  details in the top right.
  3. Tap  Additional Options.
  4. Tap Share with another organization.
  5. Tap Share a Link to share an invitation link outside of Slack. You can also tap Choose from Contacts to search for and select the contacts you’d like to send an invitation link to.
  6. Tap Done.
  1. Open the channel you’d like to share.
  2. Tap  details in the top right.
  3. Scroll down to Advanced, then tap Share with another organization.
  4. Tap Share a Link to share an invitation link outside of Slack. You can also tap Choose from Contacts to search for and select the contacts you’d like to send an invitation link to.
  5. Tap Done.

Tip: If you'd like to invite additional organizations to a channel shared before June 24, 2020, someone from the invited organization will need to allow the channel to be shared with multiple organizations first. 


What's next?

  • Depending on your settings, the accepted invitation may need to be approved by people from both organizations with permission to manage shared channels.

Note: In the future, we plan to increase the maximum number of organizations that can share a channel. If your team would benefit from working with more than 19 other organizations, reach out to us — we’d love to learn more!

Who can use this feature?
  • By default, all members (but not guests)
  • Standard, Plus, and Enterprise Grid plans