This workflow follows the Emailsend → Form Trigger recipe pattern — see all workflows that pair these two integrations.
The workflow JSON
Copy or download the full n8n JSON below. Paste it into a new n8n workflow, add your credentials, activate. Full import guide →
{
"id": "fW6PV9IaePKSMGbN",
"meta": {
"templateCredsSetupCompleted": true
},
"name": "Unique QRcode coupon assignment and validation for Lead Generation system",
"tags": [],
"nodes": [
{
"id": "5ef4dd1d-39d6-487e-a48d-420b458ac1ee",
"name": "Webhook",
"type": "n8n-nodes-base.webhook",
"position": [
-420,
340
],
"parameters": {
"path": "bb832325-8c58-4717-b866-41f8a9714cf2",
"options": {},
"responseMode": "responseNode"
},
"typeVersion": 2
},
{
"id": "a7102d60-d4bd-450d-92b3-a32e2304b4a9",
"name": "If",
"type": "n8n-nodes-base.if",
"position": [
40,
340
],
"parameters": {
"options": {},
"conditions": {
"options": {
"version": 2,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "and",
"conditions": [
{
"id": "430aee2d-a788-4d7c-ab64-880c900f0058",
"operator": {
"type": "string",
"operation": "exists",
"singleValue": true
},
"leftValue": "={{ $json.qr }}",
"rightValue": ""
}
]
}
},
"typeVersion": 2.2
},
{
"id": "f9dfd28e-42b5-488a-acde-dbbff95cf72f",
"name": "Token SuiteCRM",
"type": "n8n-nodes-base.httpRequest",
"position": [
700,
-320
],
"parameters": {
"url": "=https://SUITECRMURL/Api/access_token",
"options": {},
"requestMethod": "POST",
"bodyParametersUi": {
"parameter": [
{
"name": "grant_type",
"value": "client_credentials"
},
{
"name": "client_id",
"value": "CLIENTID"
},
{
"name": "client_secret",
"value": "CLIENTSECRET"
}
]
},
"allowUnauthorizedCerts": true
},
"notesInFlow": true,
"typeVersion": 1
},
{
"id": "0e5c7208-a90a-4612-a5eb-f962546320dc",
"name": "Create Lead SuiteCRM",
"type": "n8n-nodes-base.httpRequest",
"position": [
940,
-320
],
"parameters": {
"url": "https://SUITECRMURL/Api/V8/module",
"method": "POST",
"options": {
"response": {
"response": {
"responseFormat": "json"
}
}
},
"jsonBody": "={\"data\": \n {\n \"type\": \"Leads\",\n \"attributes\": { \n \"first_name\": \"{{ $('Form Fields').item.json.Name }}\",\n \"last_name\": \"{{ $('Form Fields').item.json.Surname }}\",\n \"email1\": \"{{ $('Form Fields').item.json.Email }}\",\n \"phone_mobile\":\"{{ $('Form Fields').item.json.Phone }}\",\n \"coupon_c\": \"{{ $('Get Coupon').item.json.COUPON }}\"\n }\n }\n}",
"sendBody": true,
"sendHeaders": true,
"specifyBody": "json",
"headerParameters": {
"parameters": [
{
"name": "Authorization",
"value": "=Bearer {{$node[\"Token SuiteCRM\"].json[\"access_token\"]}}"
},
{
"name": "Content-Type",
"value": "application/vnd.api+json"
}
]
}
},
"notesInFlow": true,
"typeVersion": 3
},
{
"id": "e9191ab8-4fb8-40bb-b676-89ac4e58b2dc",
"name": "On form submission",
"type": "n8n-nodes-base.formTrigger",
"position": [
-420,
-420
],
"parameters": {
"options": {},
"formTitle": "Landing",
"formFields": {
"values": [
{
"fieldLabel": "Name",
"placeholder": "Name",
"requiredField": true
},
{
"fieldLabel": "Surname",
"placeholder": "Surname",
"requiredField": true
},
{
"fieldType": "email",
"fieldLabel": "Email",
"placeholder": "Email",
"requiredField": true
},
{
"fieldLabel": "Phone",
"placeholder": "Phone",
"requiredField": true
}
]
}
},
"typeVersion": 2.2
},
{
"id": "4f61d7df-aeb3-4e8d-b30b-8396944e93a3",
"name": "Duplicate Lead?",
"type": "n8n-nodes-base.googleSheets",
"position": [
20,
-420
],
"parameters": {
"options": {},
"filtersUI": {
"values": [
{
"lookupValue": "={{ $json.Email }}",
"lookupColumn": "EMAIL"
}
]
},
"sheetName": {
"__rl": true,
"mode": "list",
"value": "gid=0",
"cachedResultUrl": "https://docs.google.com/spreadsheets/d/1lnRZodxZSOA0QSuzkAb7ZJcfFfNXpX7NcxMdckMTN90/edit#gid=0",
"cachedResultName": "Foglio1"
},
"documentId": {
"__rl": true,
"mode": "list",
"value": "1lnRZodxZSOA0QSuzkAb7ZJcfFfNXpX7NcxMdckMTN90",
"cachedResultUrl": "https://docs.google.com/spreadsheets/d/1lnRZodxZSOA0QSuzkAb7ZJcfFfNXpX7NcxMdckMTN90/edit?usp=drivesdk",
"cachedResultName": "Coupon"
}
},
"credentials": {
"googleSheetsOAuth2Api": {
"name": "<your credential>"
}
},
"typeVersion": 4.5,
"alwaysOutputData": true
},
{
"id": "393372b3-3aaf-4500-a795-0c0f47ea9625",
"name": "Form Fields",
"type": "n8n-nodes-base.set",
"position": [
-180,
-420
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "661d1475-f964-4a12-bfe7-88bf96851319",
"name": "Name",
"type": "string",
"value": "={{ $json.Name }}"
},
{
"id": "9991645d-c716-47db-80d6-850f3d64c782",
"name": "Surname",
"type": "string",
"value": "={{ $json.Surname }}"
},
{
"id": "c999afa6-2ec7-4f7f-bf3b-088a3597591c",
"name": "Email",
"type": "string",
"value": "={{ $json.Email }}"
},
{
"id": "f3faccdb-2412-4363-a0e3-f13b8f85b242",
"name": "Phone",
"type": "string",
"value": "={{ $json.Phone }}"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "40d47841-6fb6-4339-b101-a8e917791229",
"name": "Get Coupon",
"type": "n8n-nodes-base.googleSheets",
"position": [
480,
-320
],
"parameters": {
"options": {
"returnFirstMatch": true
},
"filtersUI": {
"values": [
{
"lookupColumn": "ID LEAD"
}
]
},
"sheetName": {
"__rl": true,
"mode": "list",
"value": "gid=0",
"cachedResultUrl": "https://docs.google.com/spreadsheets/d/1lnRZodxZSOA0QSuzkAb7ZJcfFfNXpX7NcxMdckMTN90/edit#gid=0",
"cachedResultName": "Foglio1"
},
"documentId": {
"__rl": true,
"mode": "list",
"value": "1lnRZodxZSOA0QSuzkAb7ZJcfFfNXpX7NcxMdckMTN90",
"cachedResultUrl": "https://docs.google.com/spreadsheets/d/1lnRZodxZSOA0QSuzkAb7ZJcfFfNXpX7NcxMdckMTN90/edit?usp=drivesdk",
"cachedResultName": "Coupon"
}
},
"credentials": {
"googleSheetsOAuth2Api": {
"name": "<your credential>"
}
},
"executeOnce": false,
"typeVersion": 4.5
},
{
"id": "16358f58-eb7c-4fe5-a0aa-960943a7bebd",
"name": "Update Sheet",
"type": "n8n-nodes-base.googleSheets",
"position": [
1180,
-320
],
"parameters": {
"columns": {
"value": {
"DATE": "={{ $now.format('dd/LL/yyyy HH:mm:ss') }}",
"NAME": "={{ $json.data.attributes.first_name }}",
"EMAIL": "={{ $json.data.attributes.email1 }}",
"PHONE": "={{ $json.data.attributes.phone_mobile }}",
"COUPON": "={{ $('Get Coupon').item.json.COUPON }}",
"ID LEAD": "={{ $json.data.id }}",
"SURNAME": "={{ $json.data.attributes.last_name }}"
},
"schema": [
{
"id": "NAME",
"type": "string",
"display": true,
"required": false,
"displayName": "NAME",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "SURNAME",
"type": "string",
"display": true,
"required": false,
"displayName": "SURNAME",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "EMAIL",
"type": "string",
"display": true,
"required": false,
"displayName": "EMAIL",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "PHONE",
"type": "string",
"display": true,
"required": false,
"displayName": "PHONE",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "COUPON",
"type": "string",
"display": true,
"removed": false,
"required": false,
"displayName": "COUPON",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "DATE",
"type": "string",
"display": true,
"required": false,
"displayName": "DATE",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "ID LEAD",
"type": "string",
"display": true,
"required": false,
"displayName": "ID LEAD",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "row_number",
"type": "string",
"display": true,
"removed": true,
"readOnly": true,
"required": false,
"displayName": "row_number",
"defaultMatch": false,
"canBeUsedToMatch": true
}
],
"mappingMode": "defineBelow",
"matchingColumns": [
"COUPON"
],
"attemptToConvertTypes": false,
"convertFieldsToString": false
},
"options": {},
"operation": "update",
"sheetName": {
"__rl": true,
"mode": "list",
"value": "gid=0",
"cachedResultUrl": "https://docs.google.com/spreadsheets/d/1lnRZodxZSOA0QSuzkAb7ZJcfFfNXpX7NcxMdckMTN90/edit#gid=0",
"cachedResultName": "Foglio1"
},
"documentId": {
"__rl": true,
"mode": "list",
"value": "1lnRZodxZSOA0QSuzkAb7ZJcfFfNXpX7NcxMdckMTN90",
"cachedResultUrl": "https://docs.google.com/spreadsheets/d/1lnRZodxZSOA0QSuzkAb7ZJcfFfNXpX7NcxMdckMTN90/edit?usp=drivesdk",
"cachedResultName": "Coupon"
}
},
"credentials": {
"googleSheetsOAuth2Api": {
"name": "<your credential>"
}
},
"typeVersion": 4.5
},
{
"id": "36025b8c-41cb-4827-bf0e-ec6f692c13df",
"name": "Is Duplicate?",
"type": "n8n-nodes-base.if",
"position": [
220,
-420
],
"parameters": {
"options": {},
"conditions": {
"options": {
"version": 2,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "and",
"conditions": [
{
"id": "9e3a8422-14f1-453e-bfed-4feecff34662",
"operator": {
"type": "string",
"operation": "notEmpty",
"singleValue": true
},
"leftValue": "={{ $json.EMAIL }}",
"rightValue": "={{ $('Form Fields').item.json.email }}"
}
]
}
},
"typeVersion": 2.2
},
{
"id": "e2267b93-9396-4ebf-8307-f8c98c1c3d65",
"name": "Sticky Note2",
"type": "n8n-nodes-base.stickyNote",
"position": [
-200,
-500
],
"parameters": {
"width": 340,
"height": 240,
"content": "Check if the lead has already received the coupon"
},
"typeVersion": 1
},
{
"id": "a8af825a-4e26-4660-8a9e-f7ce3ba33b3a",
"name": "Sticky Note3",
"type": "n8n-nodes-base.stickyNote",
"position": [
440,
-380
],
"parameters": {
"width": 180,
"height": 220,
"content": "Find the first available unassigned coupon"
},
"typeVersion": 1
},
{
"id": "dd868852-5b0f-4b5b-922f-f70b8a6da01e",
"name": "Sticky Note4",
"type": "n8n-nodes-base.stickyNote",
"position": [
680,
-380
],
"parameters": {
"width": 400,
"height": 220,
"content": "Enter the lead with the relative coupon on Suite CRM. Change SUITECRMURL, CLIENTSECRET and CLIENTID"
},
"typeVersion": 1
},
{
"id": "d2c26f3a-496e-47d6-b3f6-1aea5d0293fa",
"name": "Get QR",
"type": "n8n-nodes-base.httpRequest",
"position": [
1400,
-320
],
"parameters": {
"url": "=https://quickchart.io/qr?text=https://n8n.n3witalia.com/webhook-test/bb832325-8c58-4717-b866-41f8a9714cf2?qr={{ $('Get Coupon').item.json.COUPON }}&size=250",
"options": {}
},
"typeVersion": 4.2
},
{
"id": "371fa5e5-6f91-4236-83d4-81f579d7d2ab",
"name": "Send Email",
"type": "n8n-nodes-base.emailSend",
"position": [
1620,
-320
],
"parameters": {
"html": "=<!DOCTYPE html>\n<html>\n<head>\n <meta charset=\"UTF-8\">\n <title>Exclusive Discount Coupon</title>\n</head>\n<body style=\"font-family: Arial, sans-serif; text-align: center;\">\n <h2>Get Your Exclusive Discount!</h2>\n <p>Hi {{ $('On form submission').item.json.Name }},<br>\n Scan the QR code below to claim your special discount.</p>\n \n <img src=\"https://quickchart.io/qr?text=https://n8n.n3witalia.com/webhook-test/bb832325-8c58-4717-b866-41f8a9714cf2?qr={{ $('Get Coupon').item.json.COUPON }}&size=250\" alt=\"Scan to get your discount\" style=\"margin: 20px;\">\n \n <p>Hurry, the offer is limited!</p>\n</body>\n</html>\n",
"options": {},
"subject": "[n8n] Exclusive Discount Coupon",
"toEmail": "={{ $('Form Fields').item.json.Email }}",
"fromEmail": "=EMAILFROM"
},
"credentials": {
"smtp": {
"name": "<your credential>"
}
},
"typeVersion": 2.1
},
{
"id": "5893bd1d-762d-4337-8392-6d358002845a",
"name": "Update Lead",
"type": "n8n-nodes-base.httpRequest",
"position": [
1020,
100
],
"parameters": {
"url": "=https://suitecrm.dev.n3witalia.com/Api/V8/module",
"method": "PATCH",
"options": {
"response": {
"response": {
"responseFormat": "json"
}
}
},
"jsonBody": "={\n \"data\": {\n \"type\": \"Leads\",\n \"id\": \"{{ $('Not used?').item.json['ID LEAD'] }}\",\n \"attributes\": {\n \"coupon_used_c\": \"yes\"\n }\n }\n}",
"sendBody": true,
"sendHeaders": true,
"specifyBody": "json",
"headerParameters": {
"parameters": [
{
"name": "Authorization",
"value": "=Bearer {{$node[\"Token SuiteCRM 1\"].json[\"access_token\"]}}"
},
{
"name": "Content-Type",
"value": "application/vnd.api+json"
}
]
}
},
"notesInFlow": true,
"typeVersion": 3
},
{
"id": "fd0a43f4-a3f1-4008-947c-f8208d2126f7",
"name": "Not used?",
"type": "n8n-nodes-base.if",
"position": [
540,
240
],
"parameters": {
"options": {},
"conditions": {
"options": {
"version": 2,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "and",
"conditions": [
{
"id": "50546d87-ab37-4c8a-b835-e1a60f3aa0dc",
"operator": {
"type": "string",
"operation": "empty",
"singleValue": true
},
"leftValue": "={{ $json['USED COUPON?'] }}",
"rightValue": ""
},
{
"id": "025a42b8-fb90-44a8-951a-0e321b42c3b9",
"operator": {
"type": "number",
"operation": "exists",
"singleValue": true
},
"leftValue": "={{ $json.row_number }}",
"rightValue": ""
}
]
}
},
"typeVersion": 2.2
},
{
"id": "0029c366-aec1-4305-aab5-2ab6845e2828",
"name": "Coupon OK",
"type": "n8n-nodes-base.respondToWebhook",
"position": [
1480,
100
],
"parameters": {
"options": {},
"respondWith": "text",
"responseBody": "Qr valid!"
},
"typeVersion": 1.1
},
{
"id": "4c326412-0965-4f1c-9b77-2704d37a7151",
"name": "No coupon",
"type": "n8n-nodes-base.respondToWebhook",
"position": [
320,
460
],
"parameters": {
"options": {
"responseCode": 200
},
"respondWith": "text",
"responseBody": "Coupon not valid"
},
"typeVersion": 1.1
},
{
"id": "e18cf9e7-584d-4f49-88b8-4c3a513ff613",
"name": "Coupon KO",
"type": "n8n-nodes-base.respondToWebhook",
"position": [
800,
320
],
"parameters": {
"options": {
"responseCode": 200
},
"respondWith": "text",
"responseBody": "Coupon already used"
},
"typeVersion": 1.1
},
{
"id": "55a63a65-5472-4e50-8150-604c6bc9dd18",
"name": "Token SuiteCRM 1",
"type": "n8n-nodes-base.httpRequest",
"position": [
800,
100
],
"parameters": {
"url": "=https://SUITECRMURL/Api/access_token",
"options": {},
"requestMethod": "POST",
"bodyParametersUi": {
"parameter": [
{
"name": "grant_type",
"value": "client_credentials"
},
{
"name": "client_id",
"value": "CLIENTID"
},
{
"name": "client_secret",
"value": "CLIENTSECRET"
}
]
},
"allowUnauthorizedCerts": true
},
"notesInFlow": true,
"typeVersion": 1
},
{
"id": "c843c9f2-9940-423c-bc9d-8530fb43f229",
"name": "Set coupon",
"type": "n8n-nodes-base.set",
"position": [
-180,
340
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "4e9a4330-d654-410f-9b99-aa57545c2c80",
"name": "qr",
"type": "string",
"value": "={{ $json.query.qr }}"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "9a2d877d-9016-460e-b376-ea27c59a492a",
"name": "Get Lead",
"type": "n8n-nodes-base.googleSheets",
"position": [
320,
240
],
"parameters": {
"options": {
"returnFirstMatch": true
},
"filtersUI": {
"values": [
{
"lookupValue": "={{ $json.qr }}",
"lookupColumn": "COUPON"
}
]
},
"sheetName": {
"__rl": true,
"mode": "list",
"value": "gid=0",
"cachedResultUrl": "https://docs.google.com/spreadsheets/d/1lnRZodxZSOA0QSuzkAb7ZJcfFfNXpX7NcxMdckMTN90/edit#gid=0",
"cachedResultName": "Foglio1"
},
"documentId": {
"__rl": true,
"mode": "list",
"value": "1lnRZodxZSOA0QSuzkAb7ZJcfFfNXpX7NcxMdckMTN90",
"cachedResultUrl": "https://docs.google.com/spreadsheets/d/1lnRZodxZSOA0QSuzkAb7ZJcfFfNXpX7NcxMdckMTN90/edit?usp=drivesdk",
"cachedResultName": "Coupon"
}
},
"credentials": {
"googleSheetsOAuth2Api": {
"name": "<your credential>"
}
},
"typeVersion": 4.5
},
{
"id": "da2e62e5-898c-4024-8d85-517b18dcefc3",
"name": "Sticky Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
-200,
280
],
"parameters": {
"width": 360,
"height": 220,
"content": "Check if the QR code scan is valid"
},
"typeVersion": 1
},
{
"id": "507dc2ab-a762-49b8-a13a-c9b20c7135d8",
"name": "Sticky Note1",
"type": "n8n-nodes-base.stickyNote",
"position": [
300,
180
],
"parameters": {
"width": 360,
"height": 220,
"content": "Check if coupon is valid"
},
"typeVersion": 1
},
{
"id": "f44b5645-1611-4c16-83ac-ee8a4821970b",
"name": "Sticky Note5",
"type": "n8n-nodes-base.stickyNote",
"position": [
760,
40
],
"parameters": {
"width": 420,
"height": 220,
"content": "Enter the lead with the relative coupon on Suite CRM. Change SUITECRMURL, CLIENTSECRET and CLIENTID"
},
"typeVersion": 1
},
{
"id": "ad0a5999-2616-4c7b-8108-6f13e573490b",
"name": "Update coupon used",
"type": "n8n-nodes-base.googleSheets",
"position": [
1240,
100
],
"parameters": {
"columns": {
"value": {
"ID LEAD": "={{ $json.data.id }}",
"USED COUPON?": "yes"
},
"schema": [
{
"id": "NAME",
"type": "string",
"display": true,
"required": false,
"displayName": "NAME",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "SURNAME",
"type": "string",
"display": true,
"required": false,
"displayName": "SURNAME",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "EMAIL",
"type": "string",
"display": true,
"required": false,
"displayName": "EMAIL",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "PHONE",
"type": "string",
"display": true,
"required": false,
"displayName": "PHONE",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "COUPON",
"type": "string",
"display": true,
"required": false,
"displayName": "COUPON",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "DATE",
"type": "string",
"display": true,
"required": false,
"displayName": "DATE",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "ID LEAD",
"type": "string",
"display": true,
"removed": false,
"required": false,
"displayName": "ID LEAD",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "USED COUPON?",
"type": "string",
"display": true,
"required": false,
"displayName": "USED COUPON?",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "row_number",
"type": "string",
"display": true,
"removed": true,
"readOnly": true,
"required": false,
"displayName": "row_number",
"defaultMatch": false,
"canBeUsedToMatch": true
}
],
"mappingMode": "defineBelow",
"matchingColumns": [
"ID LEAD"
],
"attemptToConvertTypes": false,
"convertFieldsToString": false
},
"options": {},
"operation": "update",
"sheetName": {
"__rl": true,
"mode": "list",
"value": "gid=0",
"cachedResultUrl": "https://docs.google.com/spreadsheets/d/1lnRZodxZSOA0QSuzkAb7ZJcfFfNXpX7NcxMdckMTN90/edit#gid=0",
"cachedResultName": "Foglio1"
},
"documentId": {
"__rl": true,
"mode": "list",
"value": "1lnRZodxZSOA0QSuzkAb7ZJcfFfNXpX7NcxMdckMTN90",
"cachedResultUrl": "https://docs.google.com/spreadsheets/d/1lnRZodxZSOA0QSuzkAb7ZJcfFfNXpX7NcxMdckMTN90/edit?usp=drivesdk",
"cachedResultName": "Coupon"
}
},
"credentials": {
"googleSheetsOAuth2Api": {
"name": "<your credential>"
}
},
"typeVersion": 4.5
},
{
"id": "acd6a7fb-aeae-4baf-8f60-af16715a6de6",
"name": "Sticky Note6",
"type": "n8n-nodes-base.stickyNote",
"position": [
1560,
-380
],
"parameters": {
"width": 220,
"height": 220,
"content": "Set the Webhook URL"
},
"typeVersion": 1
},
{
"id": "091a00b6-34bd-4221-b2f1-4d55719a273a",
"name": "Sticky Note7",
"type": "n8n-nodes-base.stickyNote",
"position": [
-480,
-900
],
"parameters": {
"color": 3,
"width": 680,
"height": 240,
"content": "## Coupon assignment and simple validation system\n\nThis workflow is designed to manage the assignment and validation of unique QR code coupons within a lead generation system. The process begins with a webhook that receives data from a user-filled form, containing information such as name, surname, email, and phone number. This data is then processed to check if the lead already exists in the system, preventing duplicates.\n\nDISCLAIMER: The system is very simple and basic but can be improved and made very efficient through specific controls and new implementations"
},
"typeVersion": 1
}
],
"active": false,
"settings": {
"executionOrder": "v1"
},
"versionId": "00ea32a4-635c-41c0-a789-e7b45efdf193",
"connections": {
"If": {
"main": [
[
{
"node": "Get Lead",
"type": "main",
"index": 0
}
],
[
{
"node": "No coupon",
"type": "main",
"index": 0
}
]
]
},
"Get QR": {
"main": [
[
{
"node": "Send Email",
"type": "main",
"index": 0
}
]
]
},
"Webhook": {
"main": [
[
{
"node": "Set coupon",
"type": "main",
"index": 0
}
]
]
},
"Get Lead": {
"main": [
[
{
"node": "Not used?",
"type": "main",
"index": 0
}
]
]
},
"Not used?": {
"main": [
[
{
"node": "Token SuiteCRM 1",
"type": "main",
"index": 0
}
],
[
{
"node": "Coupon KO",
"type": "main",
"index": 0
}
]
]
},
"Get Coupon": {
"main": [
[
{
"node": "Token SuiteCRM",
"type": "main",
"index": 0
}
]
]
},
"Set coupon": {
"main": [
[
{
"node": "If",
"type": "main",
"index": 0
}
]
]
},
"Form Fields": {
"main": [
[
{
"node": "Duplicate Lead?",
"type": "main",
"index": 0
}
]
]
},
"Update Lead": {
"main": [
[
{
"node": "Update coupon used",
"type": "main",
"index": 0
}
]
]
},
"Update Sheet": {
"main": [
[
{
"node": "Get QR",
"type": "main",
"index": 0
}
]
]
},
"Is Duplicate?": {
"main": [
[],
[
{
"node": "Get Coupon",
"type": "main",
"index": 0
}
]
]
},
"Token SuiteCRM": {
"main": [
[
{
"node": "Create Lead SuiteCRM",
"type": "main",
"index": 0
}
]
]
},
"Duplicate Lead?": {
"main": [
[
{
"node": "Is Duplicate?",
"type": "main",
"index": 0
}
]
]
},
"Token SuiteCRM 1": {
"main": [
[
{
"node": "Update Lead",
"type": "main",
"index": 0
}
]
]
},
"On form submission": {
"main": [
[
{
"node": "Form Fields",
"type": "main",
"index": 0
}
]
]
},
"Update coupon used": {
"main": [
[
{
"node": "Coupon OK",
"type": "main",
"index": 0
}
]
]
},
"Create Lead SuiteCRM": {
"main": [
[
{
"node": "Update Sheet",
"type": "main",
"index": 0
}
]
]
}
}
}
Credentials you'll need
Each integration node will prompt for credentials when you import. We strip credential IDs before publishing — you'll add your own.
googleSheetsOAuth2Apismtp
Pro
For the full experience including quality scoring and batch install features for each workflow upgrade to Pro
How this works
This workflow streamlines lead generation by assigning unique QR code coupons to prospects, validating them upon redemption to capture and manage leads seamlessly. It suits marketing teams or businesses running promotional campaigns that rely on QR codes for tracking engagement and conversions. The key step involves a webhook trigger that receives QR scans, checks for duplicates in Google Sheets, and integrates with SuiteCRM via HTTP requests to create verified leads, ensuring no double redemptions while sending confirmation emails.
Use this workflow for targeted campaigns where QR codes drive sign-ups, such as events or print ads, to automate lead entry without manual verification. Avoid it for high-volume traffic exceeding webhook limits or when real-time mobile app integration is needed instead of web forms. Common variations include swapping SuiteCRM for HubSpot or adding SMS notifications for instant coupon delivery.
About this workflow
Unique QRcode coupon assignment and validation for Lead Generation system. Uses httpRequest, formTrigger, googleSheets, stickyNote. Webhook trigger; 29 nodes.
Source: https://github.com/Zie619/n8n-workflows — original creator credit. Request a take-down →
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