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Feature availabilityThe self-created Slack app connection is currently in gradual rollout. If you do not see the Slack connection option in your workspace, contact support@dust.tt to request access. Private channel indexing requires separate enablement; mention it in the same request.
Slack API changes (May 2025)Slack updated its API and Terms of Service in May 2025. Bulk data indexing via a shared Dust app is no longer permitted. All workspaces must use a self-created Slack app to maintain the Slack connection. Connections set up before December 2024 must be migrated. See Slack Troubleshooting for migration steps.
Dust synchronizes with Slack to bring your workspace conversations into Dust, enabling agents to search and retrieve messages from selected channels.
Two separate Slack integrationsThe Slack connection (this page) syncs channel messages as a data source for your agents. The Dust in Slack integration lets your team call Dust agents directly inside Slack. See Dust in Slack for the interactive bot setup.

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Prerequisites

  • A Slack Owner or Admin account (required to create and install Slack apps)
  • A Dust workspace admin account

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Step 1: Create your Slack app

Dust provides a Slack app manifest that you use to create a dedicated app in your Slack workspace.
  1. In Dust, go to Spaces -> Connections and select Slack
  2. Copy the app manifest provided
  3. Go to api.slack.com/apps and click Create New App -> From a manifest
  4. Select your Slack workspace
  5. Paste the manifest and follow the prompts to create the app
  6. Install the app to your workspace
Do not modify the manifestUse the manifest exactly as provided by Dust. Changing OAuth scopes, redirect URLs, or credentials will break the connection.

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Step 2: Connect to Dust

  1. Back in Dust, enter your app’s Client ID, Client Secret, and Signing Secret (found in your app’s Basic Information page on api.slack.com)
  2. Authorize the connection. Dust will install the @Dust Data Sync bot in your workspace.

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Step 3: Select channels to sync

  1. In Dust, go to Spaces -> Connections -> Slack -> Add / Remove data
  2. Select the channels you want Dust to sync
  3. Save. Dust will start syncing immediately.
Private channelsPrivate channels are not visible to the bot by default. To sync a private channel, first invite the bot: open the channel in Slack and type /invite @Dust Data Sync. The channel will then appear in the Dust connection manager.Private channel indexing requires a separate feature flag. Contact support@dust.tt to request access.

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What Dust syncs

  • Messages and threads from selected channels
  • Channel metadata (name, topic)
Not synced:
  • Messages from bots (including @Dust itself)
  • Messages from private channels unless the bot has been explicitly invited
  • Direct messages

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Data freshness

New messages are synced within a few minutes of being posted. Historical messages are available from the moment the bot joined the channel. Slack does not provide history from before a bot’s first invite.

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Managing the connection

To add or remove channels, go to Spaces -> Connections -> Slack -> Add / Remove data. To update your app credentials (e.g. after rotating secrets), go to Spaces -> Connections -> Slack -> Manage -> Edit.