Latenode
Slack

Receive real-time WhatsApp alerts for new Slack channel messages

This automation allows users to receive real-time WhatsApp notifications whenever a new message is posted in a specific Slack channel.

It integrates Slack and WhatsApp, monitoring the designated Slack channel and automatically sending a WhatsApp message to a predefined recipient whenever a new message is detected. This solution is designed to enhance collaboration and communication between team members by ensuring timely notifications across messaging platforms, even when not actively monitoring the Slack channel.

Updated Apr 29, 2026Est. run: 35sEst. cost: $0.0014
How Latenode estimates time and cost

Latenode bills workflow runs in credits: 1 credit = 30 seconds of processing. Minimum charge per run depends on your plan. 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.

Full pricing — how credits work →
Collaboration & notifications

Workflow preview

What this template does

  • Monitors a designated Slack channel for new messages
  • Automatically sends a WhatsApp notification to a predefined recipient
  • Integrates Slack and WhatsApp to enable cross-platform communication
  • Ensures timely notifications even when not actively monitoring Slack
  • Provides a solution to enhance team collaboration and responsiveness

How it works

1
Trigger

Connect Slack

Configure the Slack channel and credentials to connect the Slack integration.

2
Trigger

Receive new Slack message notifications

The system sets up a webhook to receive real-time notifications whenever a new message is posted in the configured Slack channel.

3
Logic

Format message

The system extracts the relevant details from the Slack message payload, such as the sender, message content, and timestamp, to prepare the information for the WhatsApp notification.

4
Action

Send WhatsApp message

The formatted message details are then sent as a WhatsApp notification to the predefined recipient, ensuring they receive real-time updates on new messages posted in the Slack channel.

Setup guide

1

Add Slack credential

1. In the Latenode Credentials panel, add a new credential for the Slack integration. Enter your Slack API key or OAuth credentials.

2

Configure Slack channel and monitor for new messages

1. Add a Slack node to your Latenode workflow. 2. In the Slack node settings, select the channel you want to monitor for new messages. 3. Configure the Slack node to trigger on new message events in the selected channel.

3

Add WhatsApp credential

1. In the Latenode Credentials panel, add a new credential for the WhatsApp integration. Enter your WhatsApp API key or OAuth credentials.

4

Send WhatsApp message on new Slack message

1. Add a WhatsApp node to your Latenode workflow. 2. In the WhatsApp node settings, configure the recipient phone number and message template to send when a new message is detected in the Slack channel.

5

Test the workflow

1. Save and run your Latenode workflow. 2. Post a new message in the Slack channel you're monitoring. 3. Verify that the WhatsApp message is sent to the configured recipient.

Requirements

Create a Slack app and configure it to access the workspace and desired channel
Obtain the Slack app's API token and add it as a secret in your Latenode workspace
Set up a WhatsApp Business API account and obtain an access token for the WhatsApp integration
Add the WhatsApp access token as a secret in your Latenode workspace

FAQ

Common questions about this template

This automation requires access to a specific Slack channel to monitor for new messages. You'll need to provide the channel name or ID so the automation can listen for updates.
Contact support →

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