Unique QRcode coupon assignment and validation for Lead Generation system

Automated workflow: Unique QRcode coupon assignment and validation for Lead Generation system. This workflow integrates 10 different services: webhook, stickyNote, httpRequest, formTrigger, set. It contains 53 nodes and follows best practices for error handling and security.

Workflow Structure (21 nodes)
100%
Form Trigger
On form submission
Set
Form Fields
Google Sheets
Duplicate Lead?
If
Is Duplicate?
Google Sheets
Get Coupon
Http Request
Token SuiteCRM
Http Request
Create Lead SuiteCRM
Google Sheets
Update Sheet
Http Request
Get QR
Email Send
Send Email
Webhook
Webhook
Set
Set coupon
If
If Node
Respond To Webhook
No coupon
Google Sheets
Get Lead
If
Not used?
Respond To Webhook
Coupon KO
Http Request
Token SuiteCRM 1
Http Request
Update Lead
Google Sheets
Update coupon used
Respond To Webhook
Coupon OK
Node Types:
trigger
logic
http
action
transform
Requires credentials

Prerequisites

Required Credentials (2)

Google Sheets

Used by: Duplicate Lead?, Get Coupon +3 more

Docs

Smtp

Used by: Send Email

Docs

Complexity

Complex

Advanced features used. Requires n8n experience.

Setup time: ~35 min
Score: 60/100
Conditional Logic
6 Integrations

When to Use This Workflow

Automated Reporting

Automatically collect and organize data into spreadsheets for analysis.

Spend less time on data entry and more time on insights.

Email Automation

Automate email responses, forwarding, or organization based on rules.

Handle routine email tasks automatically and focus on what matters.

Real-time Response

React instantly when events happen - new orders, form submissions, or API calls.

Zero delay between trigger and action for time-sensitive workflows.

workflow.json
{
  "id": "fW6PV9IaePKSMGbN",
  "meta": {
    "instanceId": "workflow-38d6fe00",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:08:01.429814",
    "updatedAt": "2025-09-29T07:08:01.429824",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "name": "Unique QRcode coupon assignment and validation for Lead Generation system",
  "tags": [
    "automation",
    "n8n",
    "production-ready",
    "excellent",
...

Workflow Details

Nodes
29
Trigger
Webhook
Source
community
Added
Sep 29, 2025

Need Help?

Check out the official n8n documentation for detailed guides.

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