Automate vendor analysis & contract management with GPT-4o, Gmail, and Google Sheets

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Important notice

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

1. Workflow Overview

How It Works Schedules automated vendor pricing analysis across multiple sources. Fetches delivery reliability and contract data, analyzes vendor performance using Claude AI, then distributes conso...

Best for

Market Research automation workflows
AI Summarization automation workflows
advanced n8n builders looking for reusable templates

Tools used

n8n-nodes-base.scheduletrigger, n8n-nodes-base.set, n8n-nodes-base.httprequest, n8n-nodes-base.airtable, n8n-nodes-base.merge, @n8n/n8n-nodes-langchain.lmchatopenai, @n8n/n8n-nodes-langchain.outputparserstructured, n8n-nodes-base.httprequesttool

Source and attribution

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

Original n8n.io source

1.1 Workflow description

Title: Automate vendor analysis & contract management with GPT-4o, Gmail, and Google Sheets
Workflow name: Automate vendor analysis & contract management with GPT-4o, Gmail, and Google Sheets

How It Works

Schedules automated vendor pricing analysis across multiple sources. Fetches delivery reliability and contract data, analyzes vendor performance using Claude AI, then distributes consolidated reports via Gmail and creates Google Sheets summaries. Target audience: procurement teams and business analysts managing multi-vendor relationships. Solves vendor evaluation bottlenecks by automating data collection, AI-driven analysis, and report distribution.

Workflow Steps

What: Trigger → Scrapes vendor data (pricing, reliability, contracts) → Sends to vendor analysis agent → Branches to multiple outputs (Gmail notification, Google Sheets archive, Data parser).

Setup Steps

Configure Schedule Trigger timing. 2. Add scraper credentials (Vendor Pricing, Delivery Reliability, Contract Data nodes). 3. Connect Claude/OpenAI API key in Vendor Analysis Agent. 4. Authenticate Gmail account for notifications. 5. Link Google Sheets API for data storage.

Prerequisites

OpenAI/Claude API key, Gmail credentials, Google Sheets API access, Vendor data sources (web scrapers or direct APIs).

Use Cases

Automate weekly vendor performance reviews, generate compliance reports for procurement teams

Customization

Modify trigger schedule, add/remove scraper nodes for new vendors, adjust Claude prompt for different analysis criteria

Benefits

Eliminates manual data gathering (hours to minutes), ensures consistent vendor evaluation criteria

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 - Schedule Trigger

Type / Role: n8n-nodes-base.scheduleTrigger - scheduleTrigger
Config choices: Version 1.3

Block 2 - Workflow Configuration

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

Block 3 - Scrape Vendor Pricing

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.3

Block 4 - Scrape Delivery Reliability

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.3

Block 5 - Get Contract Data

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

Block 6 - Merge Vendor Data

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

Block 7 - OpenAI Chat Model

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

Block 8 - Structured Output Parser

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

Block 9 - HTTP Request Tool

Type / Role: n8n-nodes-base.httpRequestTool - httpRequestTool
Config choices: Version 4.3

Block 10 - Calculate Savings Tool

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

Block 11 - Gmail Tool

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

Block 12 - Google Sheets Tool

Type / Role: n8n-nodes-base.googleSheetsTool - googleSheetsTool
Config choices: Version 4.7

Block 13 - Airtable Tool

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

Block 14 - Vendor Analysis Agent

Type / Role: @n8n/n8n-nodes-langchain.agent - agent
Config choices: Version 3

Block 15 - Check for Overpriced Vendors

Type / Role: n8n-nodes-base.if - if
Config choices: Version 2.3

Block 16 - Send Negotiation Email

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

Block 17 - Create Renewal Tasks

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.7

Block 18 - Update Contract Database

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

Block 19 - Track Savings

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.7

Block 20 - Sticky Note

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

Block 21 - Sticky Note1

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

Block 22 - Sticky Note2

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

Block 23 - Sticky Note3

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

Block 24 - Sticky Note4

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

Showing the first 24 of 28 workflow blocks. Download the JSON for the full node graph.

3. Summary Table

Workflow	Automate vendor analysis & contract management with GPT-4o, Gmail, and Google Sheets
Complexity	advanced
Nodes	28
Categories	Market Research, AI Summarization
Author	Cheng Siong Chin
Published	11 Dec 2025

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/11713/11713.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 Market Research workflows AI Summarization workflows

Frequently asked questions

What does Automate vendor analysis & contract management with GPT-4o, Gmail, and Google Sheets 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 Market Research, AI Summarization use case.

Cheng Siong Chin

203 workflows

Nodes

n8n-nodes-base.scheduletrigger n8n-nodes-base.set n8n-nodes-base.httprequest n8n-nodes-base.airtable n8n-nodes-base.merge @n8n/n8n-nodes-langchain.lmchatopenai @n8n/n8n-nodes-langchain.outputparserstructured n8n-nodes-base.httprequesttool

Complexity

advanced

Published 11 Dec 2025

Likes 0

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Install path: /data/workflows/11713/11713.json

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Automate vendor analysis & contract management with GPT-4o, Gmail, and Google Sheets

Workflow preview

Important notice

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

How It Works

Workflow Steps

Setup Steps

Prerequisites

Use Cases

Customization

Benefits

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - Schedule Trigger

Block 2 - Workflow Configuration

Block 3 - Scrape Vendor Pricing

Block 4 - Scrape Delivery Reliability

Block 5 - Get Contract Data

Block 6 - Merge Vendor Data

Block 7 - OpenAI Chat Model

Block 8 - Structured Output Parser

Block 9 - HTTP Request Tool

Block 10 - Calculate Savings Tool

Block 11 - Gmail Tool

Block 12 - Google Sheets Tool

Block 13 - Airtable Tool

Block 14 - Vendor Analysis Agent

Block 15 - Check for Overpriced Vendors

Block 16 - Send Negotiation Email

Block 17 - Create Renewal Tasks

Block 18 - Update Contract Database

Block 19 - Track Savings

Block 20 - Sticky Note

Block 21 - Sticky Note1

Block 22 - Sticky Note2

Block 23 - Sticky Note3

Block 24 - Sticky Note4

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