Tracing n8n Item Linking Errors: Why .item Fails and How to Fix It
A beginner tutorial on n8n item-linking errors: identify the error, find the node that breaks the item thread, and fix it with pairedItem or positional methods.
Articles tagged
Workflow debugging
Debug n8n Workflows Before Blaming the Integration
A practical four-layer method for isolating whether an n8n workflow failure comes from credentials, input and mappings, the external API, or your own workflow logic.
Production approval checklist for imported n8n workflow templates
A practical checklist for reviewing ownership, security, credentials, data behavior, access, execution evidence, and rollback readiness in n8n.
n8n Workflow Testing Checklist: What to Verify Before Real Use
A practical checklist for testing sample data, branches, API failures, execution details, and automatic error handling before using an n8n workflow.
Checklist: Is This a Good First n8n Automation Project?
Use this checklist to choose a small, predictable first n8n workflow, define its boundaries, test it safely, and decide when it is ready for automatic operation.
Build and debug your first trigger-to-action workflow in n8n
A beginner tutorial for building a Manual Trigger → HTTP Request → Edit Fields workflow, mapping a JSON title, and tracing incorrect output node by node.
n8n Webhook Not Working: A Step-by-Step Debugging Checklist
A practical checklist for isolating n8n webhook issues across URL modes, publication, HTTP methods, authentication, responses, and execution records.
Build a Human-Reviewed AI Support Workflow in n8n
An editorial exercise for classifying synthetic support messages, reviewing sensitive cases, drafting replies, and demonstrating an n8n error workflow.
Transform Nested JSON into Simple Records in n8n
A practical tutorial for turning a nested API array into one clean n8n item per record with Split Out and Edit Fields, plus a Code node fallback for irregular data.
Retrying Failed n8n HTTP Requests Safely
A practical guide to inspecting failed requests, separating recovery logic, bounding retries, pacing rate-limited traffic, and filtering duplicate inputs before an API call can create side effects.
Choosing a Small, Testable First n8n Workflow
A practical checklist for beginners and workshop facilitators who want to define a manageable first automation with clear inputs, rules, outputs, and tests.
Preventing duplicate API actions in n8n webhooks
Learn how to design an n8n webhook workflow that uses a stable delivery ID, persistent tracking, and an atomic database claim to prevent repeated side effects during retries and concurrent deliveries.