Generate professional proposals with GPT-4o and PDFMonkey
Needs changesNeeds changes. This template uses 1 thing(s) that n8n 3.0 removes: Function (legacy). 1 breaking item(s) found. Static check, last run 2026-10-19.
What this workflow does
This AI workflow has 8 nodes and runs when someone submits an n8n form. Along the way it connects OpenAI and Gmail.
How it runs
Trigger: When someone submits an n8n form.
- 1. Prepare AI Prompt & Client Info (Function): runs custom JavaScript (legacy Function node)
- 2. Generate Proposal Content (AI) (OpenAI): uses OpenAI
- 3. Generate Proposal PDF (PDFmonkey) (HTTP Request): calls an HTTP API
- 4. Wait (for PDFmonkey Webhook) (Wait): pauses before continuing
- 5. Download Generated PDF (HTTP Request): calls an HTTP API
- 6. Prepare Email Data (Function): runs custom JavaScript (legacy Function node)
- 7. Send Proposal Email to Client (Gmail): uses Gmail
Services it uses
Before you upgrade to n8n 3.0
1 thing in this workflow is removed in n8n 3.0. Fix it before you upgrade:
- Function (legacy) in 1. Prepare AI Prompt & Client Info1, 6. Prepare Email Data1: replace with Code node, mode 'Run Once for All Items'.
Rather not rewrite it? Many of these flows can be rebuilt in Make (free plan).
| Removed in 3.0 | Replace with |
|---|---|
| Function (legacy) 1. Prepare AI Prompt & Client Info1, 6. Prepare Email Data1 | Code node, mode 'Run Once for All Items' |
Nodes used (6)
- n8n Form Trigger
n8n-nodes-base.formTrigger - Function
n8n-nodes-base.function - OpenAI
@n8n/n8n-nodes-langchain.openAi - HTTP Request
n8n-nodes-base.httpRequest - Wait
n8n-nodes-base.wait - Gmail
n8n-nodes-base.gmail
From the author
How It Works ⚙️ This workflow is designed to streamline your proposal generation, turning raw client data into a professional document automatically. Here's a step-by-step breakdown of its operation: 1. Trigger (Form): 🚀 The workflow starts when new client…