Clear Integration of GPT-4 with Key Tools for Enhanced Functionality

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Built by Nitin Garg Nitin Garg
Created on June 13, 2026

Description

Turn discovery call forms into polished, personalized proposals in seconds. This workflow captures prospect information via Typeform, uses GPT-4 to write compelling proposal content, and automatically creates professional PandaDoc documents with pricing tables.

Who is this for?

Freelancers, consultants, agencies, and service businesses who want to:
Stop spending hours writing proposals manually
Respond to prospects faster with professional documents
Maintain consistent proposal quality at scale

What problem does it solve?

Writing proposals is time-consuming and inconsistent. This workflow automates the entire process—from form submission to ready-to-send document—while keeping your proposals personalized and professional.

How it works

Prospect fills out your Typeform discovery questionnaire
Workflow validates required fields (email, company name)
AI automatically selects the right template based on budget and project complexity
GPT-4 writes personalized proposal content tailored to the prospect's challenges
GPT-4 generates realistic project milestones
PandaDoc creates a professional document with pricing table
You receive a Slack notification with a direct link to review

Template selection logic

The workflow intelligently routes to the appropriate template:

Quick Quote** → Budget under $2,500 AND simple project
Standard Proposal** → Budget $2,500+ OR complex project

What you get

Personalized proposal content written by GPT-4
Challenge summary that shows you understand their pain points
Specific benefits with metrics (time savings, cost savings)
4-phase project timeline with realistic milestones
Professional PandaDoc document with pricing table
Slack notifications for successes and errors

Setup time: 15-20 minutes

Setup steps

Add your OpenAI API credential (select in the 3 GPT nodes)
Add your Typeform API credential
Add your PandaDoc API credential (HTTP Header Auth with your API key)
Create a Typeform with discovery questions (see below)
Create 2 PandaDoc templates (Quick Quote + Standard Proposal)
Update the Config node with your company info and template IDs
Add your Slack webhook URL to the Config node

Typeform questions needed

Your discovery form should include these fields:
What's your company name?
What industry are you in?
What's your biggest operational challenge?
What would the ideal solution look like?
What tools/platforms do you currently use?
How complex is this project? (Simple / Moderate / Complex)
What's your estimated budget? (Under $1,500 / $1,500-$2,500 / $2,500-$5,000 / $5,000-$10,000 / $10,000+)
First name
Last name
Email address

PandaDoc template tokens

Your PandaDoc templates should include these placeholder tokens:
Client.Company, Client.FirstName, Client.LastName
Client.ChallengeSummary
Project.Total, Project.Deposit
Project.TimeSavings, Project.CostSavings
Timeline.Phase1-4, Timeline.Phase1Date-4Date
Impact.Bullet1-3
Proposal.ExpiryDate, Document.Date

Requirements

OpenAI API account (~$0.05-0.15 per proposal)
Typeform account (free tier works)
PandaDoc account (API access required)
Slack workspace (for notifications)

Good to know

Processing time: 15-30 seconds per proposal
All errors are caught and sent to Slack so you can follow up manually
The Config node centralizes all settings—easy to customize
GPT prompts are editable to match your writing style
Budget threshold is adjustable (default: $2,500)
Quick Quote proposals expire in 7 days, Standard in 14 days

Nodes Used (3)

Code
n8n-nodes-base.code
HTTP Request
n8n-nodes-base.httpRequest
OpenAI
@n8n/n8n-nodes-langchain.openAi