Generate AI video sales letters with Google VEO3, Creatomate captions & Facebook publishing

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Important notice

This workflow is provided as-is. Please review and test before using in production.

1. Workflow Overview

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...

Best for

Content Creation automation workflows
Multimodal AI automation workflows
advanced n8n builders looking for reusable templates

Tools used

n8n-nodes-base.converttofile, n8n-nodes-base.switch, n8n-nodes-base.httprequest, n8n-nodes-base.wait, n8n-nodes-base.jwt, @n8n/n8n-nodes-langchain.openai, n8n-nodes-base.googlecloudstorage, n8n-nodes-base.formtrigger

Source and attribution

This workflow is cataloged by N8N Workflows and links back to its original n8n.io source page by LukaszB.

Original n8n.io source

1.1 Workflow description

Title: Generate AI video sales letters with Google VEO3, Creatomate captions & Facebook publishing
Workflow name: Generate AI video sales letters with Google VEO3, Creatomate captions & Facebook publishing

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.

1.2 Logical Blocks

This catalog entry is organized from the workflow JSON. The node-level section below shows the executable blocks available for review before importing the template.

2. Block-by-Block Analysis

Block 1 - Convert to File

Type / Role: n8n-nodes-base.convertToFile - convertToFile
Config choices: Version 1.1

Block 2 - Switch

Type / Role: n8n-nodes-base.switch - switch
Config choices: Version 3.2

Block 3 - Fetch Status

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.2

Block 4 - Wait

Type / Role: n8n-nodes-base.wait - wait
Config choices: Version 1.1

Block 5 - Generate Video1

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.2

Block 6 - JWT

Type / Role: n8n-nodes-base.jwt - jwt
Config choices: Version 1

Block 7 - GET TOKEN

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.2

Block 8 - Product Image Describing

Type / Role: @n8n/n8n-nodes-langchain.openAi - openAi
Config choices: Version 1.8

Block 9 - VeoPrompt

Type / Role: @n8n/n8n-nodes-langchain.openAi - openAi
Config choices: Version 1.8

Block 10 - Upload to GCS (To be accessible via URL)

Type / Role: n8n-nodes-base.googleCloudStorage - googleCloudStorage
Config choices: Version 1

Block 11 - Add Captions

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.2

Block 12 - Rendering....

Type / Role: n8n-nodes-base.wait - wait
Config choices: Version 1.1

Block 13 - Captions added?

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.2

Block 14 - Switch1

Type / Role: n8n-nodes-base.switch - switch
Config choices: Version 3.2

Block 15 - On form submission

Type / Role: n8n-nodes-base.formTrigger - formTrigger
Config choices: Version 2.2

Block 16 - Form Input

Type / Role: n8n-nodes-base.set - set
Config choices: Version 3.4

Block 17 - SET Credentials

Type / Role: n8n-nodes-base.set - set
Config choices: Version 3.4

Block 18 - Upload Post

Type / Role: n8n-nodes-upload-post.uploadPost - uploadPost
Config choices: Version 1

Block 19 - Content writer

Type / Role: @n8n/n8n-nodes-langchain.chainLlm - chainLlm
Config choices: Version 1.7

Block 20 - OpenAI Chat Model

Type / Role: @n8n/n8n-nodes-langchain.lmChatOpenAi - lmChatOpenAi
Config choices: Version 1.2

Block 21 - Structured Output Parser

Type / Role: @n8n/n8n-nodes-langchain.outputParserStructured - outputParserStructured
Config choices: Version 1.3

Block 22 - UGC.Formulator

Type / Role: @n8n/n8n-nodes-langchain.openAi - openAi
Config choices: Version 1.8

Block 23 - Sticky Note

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 24 - Sticky Note1

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Showing the first 24 of 30 workflow blocks. Download the JSON for the full node graph.

3. Summary Table

Workflow	Generate AI video sales letters with Google VEO3, Creatomate captions & Facebook publishing
Complexity	advanced
Nodes	30
Categories	Content Creation, Multimodal AI
Author	LukaszB
Published	25 Jul 2025

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/6449/6449.json as the source template for this automation.
2. Import the template into n8n

Open n8n, import the downloaded JSON, and review each node before activating the workflow.
3. Configure credentials and variables

Replace placeholder credentials, API keys, webhook URLs, account IDs, and environment-specific values with your own settings.
4. Test with sample data

Run the workflow manually or in a staging workspace, inspect node output, and confirm downstream systems receive the expected data.
5. Activate and monitor

Enable the workflow only after testing, then monitor executions, errors, and rate limits during the first production runs.

5. General Notes & Resources

Review imported nodes carefully before activation. This catalog entry is intended to help you inspect the workflow structure, understand required services, and find related templates faster.

Node names, credentials, schedules, webhook paths, and external service limits may need adjustment for your workspace.

Download workflow JSON Original n8n.io source Content Creation workflows Multimodal AI workflows

Frequently asked questions

What does Generate AI video sales letters with Google VEO3, Creatomate captions & Facebook publishing do?

What do I need before importing this workflow?

Review the workflow JSON, configure any required credentials in n8n, and test the automation in a safe workspace before using it in production.

Can I customize this workflow?

Yes. Use the block-by-block analysis and the downloadable JSON to inspect each node, then adjust credentials, prompts, schedules, filters, or destinations for your Content Creation, Multimodal AI use case.

LukaszB

23 workflows

Nodes

n8n-nodes-base.converttofile n8n-nodes-base.switch n8n-nodes-base.httprequest n8n-nodes-base.wait n8n-nodes-base.jwt @n8n/n8n-nodes-langchain.openai n8n-nodes-base.googlecloudstorage n8n-nodes-base.formtrigger

Complexity

advanced

Published 25 Jul 2025

Likes 0

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Install path: /data/workflows/6449/6449.json

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Generate AI video sales letters with Google VEO3, Creatomate captions & Facebook publishing

Workflow preview

Important notice

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

VEO3 VSL Generator & Facebook Auto-Publisher

What this workflow does

Technologies used

Required inputs

Output

Documentation

Customization

Summary

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - Convert to File

Block 2 - Switch

Block 3 - Fetch Status

Block 4 - Wait

Block 5 - Generate Video1

Block 6 - JWT

Block 7 - GET TOKEN

Block 8 - Product Image Describing

Block 9 - VeoPrompt

Block 10 - Upload to GCS (To be accessible via URL)

Block 11 - Add Captions

Block 12 - Rendering....

Block 13 - Captions added?

Block 14 - Switch1

Block 15 - On form submission

Block 16 - Form Input

Block 17 - SET Credentials

Block 18 - Upload Post

Block 19 - Content writer

Block 20 - OpenAI Chat Model

Block 21 - Structured Output Parser

Block 22 - UGC.Formulator

Block 23 - Sticky Note

Block 24 - Sticky Note1

3. Summary Table

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

2. Import the template into n8n

3. Configure credentials and variables

4. Test with sample data

5. Activate and monitor

5. General Notes & Resources

Frequently asked questions