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Generate AI Video Sales Letters with Google VEO3, Creatomate Captions & Facebook Publishing

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Created by: LukaszB || lukaszb

LukaszB

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Last update 19 hours ago

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This workflow contains community nodes that are only compatible with the self-hosted version of n8n.

VEO3 VSL Generator & Facebook Auto-Publisher

What this workflow does

This n8n workflow automates the full process of creating a short-form Video Sales Letter (VSL) using Google VEO3, adding captions via Creatomate, and publishing the final video directly to a Facebook Page.

It's designed for creators, ecommerce brands, and marketers who want to generate and publish high-converting videos without video editing, manual uploads, or third-party tools.

Technologies used

  • Google Vertex AI (VEO3) – for AI-generated video generation
  • Creatomate – for dynamic captioning
  • Google Cloud Storage – for video hosting (public access)
  • Upload Post – for direct video publishing
  • OpenAI (optional) – for script generation
  • n8n – as the automation engine

Required inputs

The workflow starts from a form and expects:

  • Product Name – the product or offer to promote
  • Product Image – a visual representation of the product

Optional:

  • Prompt override – custom prompt text if you want to bypass the AI script generation

Output

  • One AI-generated vertical video (9:16), rendered via VEO3
  • Captions applied automatically via Creatomate
  • Final video posted to your connected Facebook Page
  • File stored in Google Cloud Storage with public access

Documentation

This template includes full step-by-step setup instructions:

  • Setting up JWT credentials for Google VEO3
  • Configuring a public GCS bucket
  • Creating and connecting a Creatomate API key
  • Generating a long-lived Facebook Page token
  • Connecting credentials inside n8n
  • Editing the form, caption templates, and upload destination
  • Notes on maintenance, quota limits, and API behavior

Customization

This workflow is modular and easy to adapt. You can:

  • Replace the form trigger with Google Sheets, Airtable, or webhook
  • Swap Facebook with Instagram, LinkedIn, or Telegram
  • Modify prompt structure, voice, visual style, or caption format

Summary

Just submit a product name and image via form — and get a ready-to-publish VSL on your Facebook Page. Fast, automated, and fully editable.