Latenode
Slack
JavaScript

Real-time Slack channel message mirroring across workspaces

This automation allows users to automatically monitor a source Slack channel for new messages and copy the content to a designated destination channel in real-time.

The flow is triggered by a 'New Message Posted to Channel' event in Slack, which captures any new messages posted to a specified source channel. The automation then sends the message content to another Slack channel chosen by the user. This ensures that important information is routed to the right place, helping teams stay aligned and up-to-date on key discussions and updates.

Updated May 8, 2026Est. run: 7sEst. cost: $0.0004
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Latenode bills workflow runtime in CPU seconds. The first 10,000 CPU seconds are free each month, then usage follows pay-as-you-go CPU-second pricing. Plug-and-Play (PnP) AI nodes are billed separately—each PnP token is $1 USD, charged pay-as-you-go at vendor cost plus a small processing fee, with no API keys required.

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Collaboration & notifications

Workflow preview

What this template does

  • Captures new messages posted to a specified Slack channel
  • Copies the message content to a designated destination channel
  • Ensures important information is routed to the right place
  • Helps teams stay aligned and up-to-date on key discussions
  • Provides a real-time sync between source and destination channels

How it works

1
Trigger

Monitor Slack Channel

This step monitors a specific Slack channel for new messages. Whenever a new message is posted to the source channel, the automation is triggered to begin processing the message content.

2
Logic

Transform Message Content

The automation prepares the message content from the source channel for posting to the destination channel. This may involve formatting or enriching the content as needed.

3
Action

Post to Destination Channel

The transformed message content is then sent to the specified destination Slack channel, ensuring that the information is routed to the right place for the team.

Setup guide

1

Add Slack Credential

1. Go to the Latenode Credentials panel and add a new Slack credential. Connect your Slack workspace by following the OAuth flow.

2

Configure Slack Trigger Node

2. In the Latenode visual builder, add a Slack Trigger node. Select the 'New Message Posted to Channel' event and choose the source Slack channel you want to monitor for new messages.

3

Configure Slack Action Node

3. Add a Slack Action node to the workflow. Select the 'Send Channel Message' action and choose the destination Slack channel where you want to copy the new messages.

4

Map Slack Message Data

4. In the Slack Action node settings, map the relevant message data fields like 'Text' to send the content of the new message to the destination channel.

5

Save and Activate Workflow

5. Save your changes and activate the workflow. The automation will now monitor the source Slack channel and copy any new messages to the destination channel in real-time.

Requirements

Connect a Slack workspace with access to the source and destination channels
Ensure the bot has permissions to read and post messages in the specified Slack channels
Configure the source Slack channel to be monitored for new messages
Specify the destination Slack channel where the message content will be copied to

FAQ

Common questions about this template

Each run uses credits on your Latenode plan. We charge for processing time (1 credit = 30 seconds). Your actual cost depends on your plan and how long the run takes. See pricing plans for plans and how credits work.
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