n8n Beginner Course: Master Core Workflow Concepts

Key Canvas Elements:

• Workflow menu with name and tags at the top
• Workflow activation settings to make your workflow go live
• Version history and workflow-specific settings in the top right
• Nodes in the middle (the building blocks of your workflow)
• Zoom settings in the bottom left corner

My Take:

Take time to explore the canvas interface before diving into complex workflows. Understanding the layout helps you work more efficiently, especially when troubleshooting large workflows later.

Key Concepts:

• Every workflow starts with a trigger node (orange lightning icon)
• Trigger nodes only have output branches (no inputs)
• Workflows can have multiple triggers for complex use cases
• A workflow must be activated for triggers to work automatically
• The main workflow menu lets you filter workflows by tags and owners

My Take:

Always test your triggers thoroughly before activating a workflow. Once activated, your workflow will run automatically based on the trigger conditions, so ensure everything is working correctly first.

Navigation Tips:

• Double-click any node to see nodes before and after it
• Use the navigation icons to move through the workflow
• The workflow always processes data from left to right
• Each node transforms or routes the data before passing it to the next node

My Take:

As your workflows grow more complex, these navigation features become essential. They help you focus on specific parts of your workflow without getting lost in the bigger picture.

Two Ways to Create Branches:

• Conditional Branching: Using nodes with multiple outputs (like IF nodes) where each item follows only one path
• Duplicate Branching: Dragging multiple outputs from a single node, where every item follows every path

My Take:

Understanding the difference between these branching methods is crucial. Conditional branching helps you create efficient workflows that process data differently based on its properties, while duplicate branching lets you perform multiple operations on the same data set.

Example Workflow Steps:

• Setting up a Schedule trigger to run daily at 8 AM
• Connecting to Google Sheets to retrieve contact data
• Using a Filter node to remove contacts without email addresses
• Adding an IF node to separate professional emails from personal emails (Gmail/Hotmail)
• Creating different processing paths based on email type

// Example condition for the IF node to identify professional emails
// This would be configured in the n8n interface
{
  "conditions": [
    {
      "value1": "{{$node["Google Sheets"].json["email"]}}",
      "operation": "notContains",
      "value2": "@gmail"
    },
    {
      "value1": "{{$node["Google Sheets"].json["email"]}}",
      "operation": "notContains",
      "value2": "@hotmail"
    }
  ],
  "combinator": "and"
}
    

My Take:

This example perfectly illustrates how n8n can be used for practical business scenarios. By combining filters and conditional branching, you can create sophisticated workflows that handle different data scenarios automatically, saving hours of manual work.