Generate AI-powered lease renewal offers with Ollama LLM, Supabase and Gmail

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Important notice

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

1. Workflow Overview

Automated Lease Renewal Offer by Email Features Automated Lease Offer Generation using AI (Ollama model). Duplicate File Check to avoid reprocessing the same customer. Personalized Offer Lette...

Best for

Document Extraction automation workflows
Multimodal AI automation workflows
advanced n8n builders looking for reusable templates

Tools used

@n8n/n8n-nodes-langchain.lmchatollama, n8n-nodes-base.set, n8n-nodes-base.formtrigger, n8n-nodes-base.converttofile, n8n-nodes-base.gmail, n8n-nodes-base.supabase, n8n-nodes-base.googledrive, n8n-nodes-base.if

Source and attribution

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

Original n8n.io source

1.1 Workflow description

Title: Generate AI-powered lease renewal offers with Ollama LLM, Supabase and Gmail
Workflow name: Generate AI-powered lease renewal offers with Ollama LLM, Supabase and Gmail

📄 Automated Lease Renewal Offer by Email

✅ Features

Automated Lease Offer Generation using AI (Ollama model).
Duplicate File Check to avoid reprocessing the same customer.
Personalized Offer Letter creation based on customer details from Supabase.
PDF/Text File Conversion for formatted output.
Automatic Google Drive Management for storing and retrieving files.
Email Sending with generated offer letter attached.
Seamless Integration with Supabase, Google Drive, Gmail, and AI LLM.

⚙️ How It Works

Trigger: Workflow starts on form submission with customer details.
Customer Lookup:

Searches Supabase for customer data.
Updates customer information if needed.

File Search & Duplication Check:

Looks for existing lease offer files in Google Drive.
If duplicate found, deletes old file before proceeding.

AI Lease Offer Creation:

Uses the LLM Chain (offerLetter) to generate a customized lease renewal letter.

File Conversion:

Converts AI-generated text into a downloadable file format.

Upload to Drive:

Saves the new lease offer in Google Drive.

Email Preparation:

Uses Basic LLM Chain-email to draft the email body.
Downloads the offer file from Drive and attaches it.

Email Sending:

Sends the renewal offer email via Gmail to the customer.

🛠 Setup Steps

Supabase Connection:

Add Supabase credentials in n8n.
Ensure a customers table exists with relevant columns.

🔜Future Steps

Add specific letter template (organization template).
PDF offer letter

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 - Ollama Chat Model

Type / Role: @n8n/n8n-nodes-langchain.lmChatOllama - lmChatOllama
Config choices: Version 1

Block 2 - Edit Fields

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

Block 3 - On form submission

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

Block 4 - Convert to File

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

Block 5 - Gmail

Type / Role: n8n-nodes-base.gmail - gmail
Config choices: Version 2.1

Block 6 - Supabase-search_cust

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

Block 7 - Google Drive-delete_dup

Type / Role: n8n-nodes-base.googleDrive - googleDrive
Config choices: Version 3

Block 8 - If-check_dup

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

Block 9 - Supabase_cust_info

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

Block 10 - Google Drive-search

Type / Role: n8n-nodes-base.googleDrive - googleDrive
Config choices: Version 3

Block 11 - Google Drive-upload

Type / Role: n8n-nodes-base.googleDrive - googleDrive
Config choices: Version 3

Block 12 - Basic LLM Chain-offerLetter

Type / Role: @n8n/n8n-nodes-langchain.chainLlm - chainLlm
Config choices: Version 1.6

Block 13 - Basic LLM Chain-email

Type / Role: @n8n/n8n-nodes-langchain.chainLlm - chainLlm
Config choices: Version 1.6

Block 14 - Google Drive-get_file

Type / Role: n8n-nodes-base.googleDrive - googleDrive
Config choices: Version 3

Block 15 - Sticky Note

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

Block 16 - Sticky Note1

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

Block 17 - Sticky Note2

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

3. Summary Table

Workflow	Generate AI-powered lease renewal offers with Ollama LLM, Supabase and Gmail
Complexity	advanced
Nodes	17
Categories	Document Extraction, Multimodal AI
Author	Lakindu Siriwardana
Published	09 Aug 2025

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/7201/7201.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 Document Extraction workflows Multimodal AI workflows

Frequently asked questions

What does Generate AI-powered lease renewal offers with Ollama LLM, Supabase and Gmail do?

Automated Lease Renewal Offer by Email Features Automated Lease Offer Generation using AI (Ollama model). Duplicate File Check to avoid reprocessing the same customer. Personalized Offer Lette...

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 Document Extraction, Multimodal AI use case.

Lakindu Siriwardana

4 workflows

Nodes

@n8n/n8n-nodes-langchain.lmchatollama n8n-nodes-base.set n8n-nodes-base.formtrigger n8n-nodes-base.converttofile n8n-nodes-base.gmail n8n-nodes-base.supabase n8n-nodes-base.googledrive n8n-nodes-base.if

Complexity

advanced

Published 09 Aug 2025

Likes 0

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Install path: /data/workflows/7201/7201.json

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Generate AI-powered lease renewal offers with Ollama LLM, Supabase and Gmail

Workflow preview

Important notice

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

📄 Automated Lease Renewal Offer by Email

✅ Features

⚙️ How It Works

🛠 Setup Steps

🔜Future Steps

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - Ollama Chat Model

Block 2 - Edit Fields

Block 3 - On form submission

Block 4 - Convert to File

Block 5 - Gmail

Block 6 - Supabase-search_cust

Block 7 - Google Drive-delete_dup

Block 8 - If-check_dup

Block 9 - Supabase_cust_info

Block 10 - Google Drive-search

Block 11 - Google Drive-upload

Block 12 - Basic LLM Chain-offerLetter

Block 13 - Basic LLM Chain-email

Block 14 - Google Drive-get_file

Block 15 - Sticky Note

Block 16 - Sticky Note1

Block 17 - Sticky Note2

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