How to Use Merge Node in n8n | Combine Data Like a Pro

Learn How to Use Merge Node in n8n | Combine Data Like a Pro in this comprehensive n8n tutorial. Step-by-step guide with video, code examples, and expert tips from the n8n Zero to Hero course.

Table of Contents

Overview

This lesson is part of the n8n AI Automation - Zero to Hero course, Section: 3. Deep Dive Concepts.

Watch the video above for the full tutorial, or read the written guide below.

What Is the Merge Node in n8n?

The Merge node combines data from two or more separate branches of a workflow into one stream. It is how you bring back together results that were split earlier or fetched in parallel, so a single later node can work on the combined data.

How to Use the Merge Node in n8n

Connect two branches into the Merge node, then choose a mode. Append stacks all items from both inputs one after another. Combine joins them by matching field, by position, or by all possible combinations, which works like a SQL join on a shared key. Choose Branch passes through just one input. Use Combine "by matching fields" when you need to enrich one dataset with values from another using a common ID.

Key Takeaways

  • Understanding the core concepts covered in this lesson
  • Practical, hands-on experience you can apply immediately
  • Tips from real-world n8n workflow implementations

Next Steps

Continue your n8n journey with the full n8n AI Automation - Zero to Hero course.

Frequently Asked Questions

The Merge node combines data from two or more workflow branches into one stream. You will learn its Append, Combine, and Choose Branch modes, including how to join two datasets on a matching field like a SQL join.

This lesson builds on earlier concepts. If you are new to n8n, start with Lesson 1 for the best learning experience.

Join the GenAI Unplugged community on Substack where Dheeraj answers questions and shares additional tips.

Dheeraj Sharma

Dheeraj Sharma

AI Systems Builder
Creator of the n8n Zero to Hero course (42 lessons, 31+ hours). I help solopreneurs build AI systems that grow revenue without growing workload.

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