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MASTERYCERTIFICATIONS
Process AutomationIntermediateEnglish

Workflow Automation with n8n

Design, build and operate production workflows with n8n: APIs, webhooks, error handling, AI agents and self-hosting.

Created by Mastery Certifications Academic Team
30 h25 lessonsUpdated October 2026
Also available in Spanish

What you’ll learn

  • Build an end-to-end order automation with error handling, idempotency and a runbook
  • Write expressions and Code node logic that keep the item structure and item links intact
  • Verify webhook signatures and process repeated deliveries without duplicate side effects
  • Plan a production deployment with queue mode, backups and protected credentials

About this course

Automations that run unattended need more than a working demo: they must cope with duplicate webhooks, rate-limited APIs, invalid data and failures at three in the morning, and they must keep credentials safe. This course teaches you to build workflows with n8n that do, following one online retailer as it automates its orders, stock, invoices and customer support.

You will work with the item model, expressions and the Code node in JavaScript and Python; call APIs with credentials, pagination and rate limits; verify signed webhooks and make integrations idempotent; add retries, error workflows, validation and observability; build AI agents with tools, retrieval, guardrails and human approval; and deploy, scale, secure and back up a self-hosted instance.

The course prepares you for the independent Mastery Certified: Workflow Automation Specialist (n8n) certification, with an exam guide, a practice exam and the final project the certification requires: an end-to-end order automation with error handling, idempotency and a runbook.

Course objectives

  • Decide what to automate and design workflows that are easy to operate
  • Transform data with the item model, expressions and the Code node
  • Integrate APIs and webhooks safely, with pagination, rate limits and idempotency
  • Make workflows reliable with retries, error workflows, validation and monitoring
  • Add AI agents with tools, retrieval, guardrails and human review
  • Deploy, secure and operate a self-hosted n8n instance

Skills you’ll gain

  • AI Agents
  • API Integration
  • Process Orchestration
  • Workflow Automation

Course content

6 modules · 25 lessons · 30 h

Try an interactive practiceWhat to automate, and why
01Workflow automation fundamentals

Decide what to automate, learn how n8n runs workflows, choose where to host it and build your first workflow.

02Data, expressions and the Code node

Work with the item model, map data with expressions, route and merge items, and write Code node logic in JavaScript and Python.

03Integrations and APIs

Call APIs with credentials, paginate and respect rate limits, secure webhooks, make integrations idempotent and reuse logic with sub-workflows.

  • HTTP requests, credentials and authentication (Reading)22 min
  • Pagination and rate limits (Code)30 min
  • Webhooks in and out (Code)31 min
  • Lab: the webhook that fired twice (Lab)28 min
  • Sub-workflows and reusable building blocks (Reading)22 min
04Error handling and reliability

Retry what can succeed, route what can't, alert the right people, validate inputs and measure reliability from execution data.

  • Retries, error outputs and backoff (Code)26 min
  • Error workflows, alerts and validation (Reading)32 min
  • Exercise: audit a workflow export (Exercise)34 min
  • Lab: observability with execution logs (Lab)34 min
05AI workflows, deployment and operations

Build AI agents with tools, retrieval, guardrails and human review, then deploy, scale, secure and operate a self-hosted instance.

  • AI agents: models, tools and memory (Reading)26 min
  • Retrieval, guardrails and human review (Code)30 min
  • Lab: a support agent with human approval (Lab)34 min
  • Self-hosting, scaling and backups (Reading)26 min
  • Security, access and environments (Video)30 min
06Certification capstone

Prepare for the independent Mastery Certified: Workflow Automation Specialist (n8n) exam, build the final project and take the practice exam.

  • Certification exam guide (Reading)12 min
  • Final project: the order sync, end to end, with a runbook (Project)1 h 2 min
  • Certification practice exam (Exam)50 min

Requirements

  • Basic JavaScript: functions, arrays, objects and async code
  • Comfort reading JSON and calling REST APIs
  • A computer that can run Docker, or an n8n Cloud trial, for the labs

Who this course is for

  • Developers and IT professionals who automate business processes
  • Operations and integration specialists moving from manual work or scripts to workflows
  • Technical analysts who want to build and run reliable automations with AI

Earn a verifiable certificate

Complete the course requirements to receive a digital certificate with a unique serial number and QR code. Share it on LinkedIn and let anyone confirm it in seconds.

This course prepares you for

Mastery Certified: Workflow Automation Specialist (n8n)

Your instructor

Mastery Certifications Academic Team

Course design, review and quality assurance

The Mastery Certifications academic team designs, reviews and maintains every course in the catalog. Each course is checked by a subject-matter instructor before it is published, and its practice exercises are verified automatically.

Frequently asked questions

Is this an official n8n certification?

No. Mastery Certified: Workflow Automation Specialist (n8n) is an independent certification by Mastery Certifications. It is not affiliated with, endorsed by or an official certification of n8n. n8n is a trademark of n8n GmbH.

Does the course include the certification exam?

The course prepares you for it with an exam guide, a practice exam and the final project that the certification requires. The graded certification exam is taken separately on the platform.

Do I need a paid n8n plan for the labs?

No. The labs work with the free self-hosted Community edition running in Docker, or with an n8n Cloud free trial. Features that need a paid plan, such as Git-based environments, are explained without requiring one. The AI labs need access to a chat model, either a provider account of your choice or a local model.

Can I do the practices without installing anything?

Yes. The coding practices run in your browser with simulated nodes and APIs. Installing n8n is needed only for the hands-on labs and the final project.

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