Conclude Bridge (Beta User Guide)

This is a beta guide for users who want to set up a Slack and Teams bridge between their company and another company. Conclude’s Bridge solution establishes a company-to-company relationship first through a single invite, then lets both sides share and connect any number of channels, reducing IT admin burden.

Conclude Bridge is a secure solution, with granular controls that allow you to manage per-channel connection attachment and file-sharing settings.

How Bridge differs from Connect

  • Connect for cross-platform collaboration links Slack and Teams workspaces, channels, and chats, within the same organization. For this solution, you need to have ownership of both Slack and Teams accounts
  • Connect for cross-company collaboration lets you connect your messaging platform with an external company (customers, vendors, partners), using one invite per channel. You only need access to one platform for this to work. This solution is better suited for companies that need to connect fewer channels

How Bridge works

The bridge is set up in two phases:

Step 1 – Connect the companies: An admin in one company sends an invite to a contact in another company. Once that IT admin accepts, Bridge becomes active.

Step 2 – Share and connect channels: Once active, both sides can independently share channels and connect them in the Dashboard. Messages, files, @mentions, and reactions will sync across Slack and Microsoft Teams in both directions.

Note: this solution can also be used for Slack to Slack or Teams to Teams workspace and tenant connections where companies don’t want to set up guest accounts and may have a greater need for security.

Step 1: Send the Bridge invitation

Only admins can create the bridge. From the Dashboard, go to Admin console › Bridge.

Click Invite a company in the upper right corner. Enter the contact name and email address of the person at the other company who will accept the invitation (the invitation can be forwarded to an admin), then click Send. The invited company will receive an email with a secure link, valid for 96 hours.

 

Step 2: Invited company accepts the Bridge invitation

The invited company opens the link from the email and follows the steps. The invitation shows who sent it and which company is requesting the Bridge.

An admin from the invited company signs in with their primary chat platform (Slack or Microsoft Teams), then clicks Accept invitation. This creates a Conclude account for the invited company and activates the Bridge for both sides.

 

Step 3: Confirm the Bridge is active

The inviting company’s admin can check this by navigating to Admin console › Bridge. The partner organization will now appear in the Active bridges list with the status Active.

The Admin console is used for company-level setup; channel sharing happens in the Dashboard.

 

Step 4: Share channels with the partner

Both companies can navigate to Dashboard › Bridge (in the blue sidebar) to share and connect their channels. From the sidebar, click on Bridge.

Under the Active connections tab, you’ll see a card for each active channel connection. You can also check what’s pending.

 

 

On the Share channels tab, you can select which channels you want to share with the external company.

 

Select the channels you want to make available to the partner company and click Save. They will now see those channels and can connect them to their own channels.

Things to note:

  • You can come back later and share more channels at any time
  • Both sides share independently – you don’t need to share at the same time
  • Sharing doesn’t connect the channel – it just makes it available for pairing

Tip: For Microsoft Teams, channels are grouped by Team. You can share individual channels or all channels in a Team. For Slack, all eligible channels in your workspace are listed.

Step 5: Connect your channels

Once both sides have shared at least one channel, you can connect them. Connecting a pair of channels will sync all messages, files, @mentions, and reactions between them.

 

Under Bridge from the Available channels tab:

  • Pick one of your shared channels from the Your channels dropdown

  • Pick one of the other shared channels from the External channels dropdown

  • Click Connect to establish the connection (it becomes active immediately)

  • Users in both channels will see a welcome message confirming the channels are linked

     

 

Note: A channel on your side can typically only be connected to one channel on the external/partner’s side. To pair with another channel, share a different channel first

Managing your Bridge connections

Active Bridges (between companies) and their channel connections are managed under Dashboard › Bridge. You can:

  • Share additional channels at any time on the Share channels tab
  • View all connected channels on the Active connections tab
  • Disconnect a single channel pair without ending the Bridge
  • Remove a Bridge completely from the Admin console › Bridge – this disconnects all channels and ends the company-to-company connection

Setup tips

Microsoft Teams integration user

If you use Microsoft Teams, we strongly recommend enabling an integration user account. Without it, some messages may appear to come from a fallback sender. Open Admin console › Workspaces, click the edit (pencil) icon next to the workspace, and enable the integration user account. The integration user must also be added to the Team and the connected channel (for private channels, add it directly to the channel).

Channel naming

If you plan to connect several channels, naming them consistently on both sides (for example, #project-x on Slack and Project X on Teams) makes it easier to match them when connecting.

 

Connect. Collaborate. Conclude