Maintainability issue

Monolithic workflow in n8n

Why massive workflows with 50+ nodes become unmanageable

What is this issue?

A monolithic workflow is one that contains more than 50 nodes in a single workflow. These workflows become increasingly difficult to understand, debug, and maintain as they grow larger.

Signs of a monolithic workflow:

  • Canvas is cluttered and hard to navigate
  • Debugging requires scrolling through many nodes
  • Multiple unrelated business processes in one workflow
  • Changes in one area unexpectedly affect other areas

Why is this dangerous?

Memory issues

Large workflows consume more memory during execution, potentially causing crashes with large datasets.

Difficult debugging

Finding and fixing bugs in a workflow with 50+ nodes is time-consuming and error-prone.

Team collaboration problems

Multiple people working on the same large workflow leads to merge conflicts and coordination issues.

Single point of failure

An error anywhere in the workflow can affect all processes, even unrelated ones.

How to fix it

  1. 1

    Identify logical boundaries

    Look for natural break points where one process ends and another begins. These become separate sub-workflows.

  2. 2

    Use Execute Workflow node

    Create smaller, focused workflows and connect them using the Execute Workflow node.

  3. 3

    Create reusable components

    Common patterns (send notification, log to database) should be extracted to shared sub-workflows.

  4. 4

    Follow single responsibility

    Each workflow should do one thing well. If you need 'and' to describe it, consider splitting.

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