How to Send Salesforce Task Assignments to Slack with N8n

Workflows > + New Workflow

Create new workflow

Start a new N8n workflow to connect Salesforce task creation to Slack notifications. This workflow will trigger whenever a task gets assigned in Salesforce.

1. 1Click the + New Workflow button in your N8n dashboard
2. 2Name your workflow 'Salesforce Task to Slack DM'
3. 3Click Create to open the workflow editor

Webhook Node > Settings

Add Salesforce webhook trigger

Set up N8n to receive notifications when Salesforce tasks are created or assigned. Salesforce will send real-time data to this webhook URL.

1. 1Click the + button to add a node
2. 2Search for 'Webhook' and select it
3. 3Set HTTP Method to POST
4. 4Copy the webhook URL from the Test URL field
5. 5Leave all other settings as default

Setup > Workflow Rules > New Rule

Configure Salesforce outbound message

Tell Salesforce to send task data to your N8n webhook whenever a task is assigned. This creates the real-time connection between the systems.

1. 1In Salesforce Setup, go to Workflow Rules
2. 2Click New Rule and select Task object
3. 3Set rule criteria to 'OwnerId not equal to null'
4. 4Add an Outbound Message action
5. 5Set the endpoint URL to your N8n webhook URL
6. 6Select fields: Id, Subject, Priority, ActivityDate, WhoId, WhatId, OwnerId

Salesforce Node > Operations > Get

Add Salesforce API node

Pull additional task details that aren't included in the webhook payload. You need the assigned user's email and related record information for the Slack message.

1. 1Add a new node after the webhook
2. 2Search for and select 'Salesforce'
3. 3Choose 'Get' operation
4. 4Set Resource to 'Task'
5. 5Map Task ID from webhook data to the ID field
6. 6Add fields: Owner.Email, Owner.Name, Who.Name, What.Name

Set Node > Fields

Format task priority

Convert Salesforce priority values into readable text for Slack. Salesforce stores priority as picklist values that need formatting.

1. 1Add a Set node after the Salesforce node
2. 2Create a new field called 'priorityEmoji'
3. 3Use this expression: {{ $node['Salesforce'].json['Priority'] === 'High' ? '🔴' : $node['Salesforce'].json['Priority'] === 'Medium' ? '🟡' : '🟢' }}
4. 4Add another field 'dueDate' with: {{ new Date($node['Salesforce'].json['ActivityDate']).toLocaleDateString() }}

Slack Node > Operations > Get User by Email

Look up Slack user by email

Find the Slack user ID that matches the Salesforce task owner's email address. Slack requires user IDs, not email addresses, for direct messages.

1. 1Add a Slack node after the Set node
2. 2Choose 'Get User by Email' operation
3. 3Map the Owner.Email from Salesforce to the email field
4. 4Set the operation to return user ID

Slack Node > Operations > Open Direct Message

Create Slack DM channel

Open a direct message conversation with the assigned user before sending the task notification. Slack requires an existing DM channel to send messages.

1. 1Add another Slack node
2. 2Choose 'Open Direct Message' operation
3. 3Map the user ID from the previous Slack node to the user field
4. 4This creates a channel ID for the DM

Set Node > Message Formatting

Format task notification message

Build a comprehensive Slack message with task details, priority, due date, and related record information. Use Slack's block formatting for better readability.

1. 1Add a Set node to build the message
2. 2Create field 'messageText' with: 'New task assigned: {{ $node['Salesforce'].json['Subject'] }}'
3. 3Add field 'blocks' with Slack block kit JSON structure
4. 4Include priority emoji, due date, and related record name in the blocks
5. 5Add a button link back to the Salesforce task

Slack Node > Operations > Send Message

Send Slack direct message

Send the formatted task notification to the assigned user's DM channel. This delivers the notification with all task context.

1. 1Add final Slack node
2. 2Choose 'Send Message' operation
3. 3Map channel ID from the DM creation step
4. 4Map messageText and blocks from the formatting step
5. 5Set as_user to true

Workflow > Execute Workflow

Test the workflow

Run a complete test by creating a task in Salesforce and verifying the Slack notification arrives with correct formatting and recipient.

1. 1Click Execute Workflow to activate listening mode
2. 2Go to Salesforce and create a new task
3. 3Assign it to a user whose email matches a Slack member
4. 4Set priority and due date
5. 5Save the task

Workflow > Activate

Activate production webhook

Switch from test mode to production so the workflow runs automatically on all future Salesforce task assignments.

1. 1Click the Activate toggle in the top right
2. 2The webhook URL will change from test to production
3. 3Update your Salesforce outbound message with the new production URL
4. 4Save the Salesforce workflow rule

Node Settings > Continue on Fail

Set up error handling

Configure the workflow to handle failures gracefully when users don't exist in Slack or API calls fail.

1. 1Add error handling to the Slack user lookup node
2. 2Set 'Continue on Fail' to true
3. 3Add an IF node to check if user lookup succeeded
4. 4Route failed lookups to a different Slack notification (like #general channel)

Drop this into an n8n Code node.

// Add this to your message formatting to include clickable Salesforce link
{
  "type": "section",

// Add this to your message formatting to include clickable Salesforce link
{
  "type": "section",
  "text": {
    "type": "mrkdwn",
    "text": `<https://yourinstance.salesforce.com/${$node['Webhook'].json.Id}|View Task in Salesforce>`
  }
}