Generate AI video sales letters with Google VEO3

Description

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.