Marth - Business Automation This workflow corresponds to n8n.io template #6515 — we link there as the canonical source.
This workflow follows the Gmail → Google Docs 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": "6eON4lzsjqC1Z068",
"meta": {
"templateCredsSetupCompleted": true
},
"name": "Automated Smart Cash Flow & Billing Management System with GPT-4 & Stripe Invoice",
"tags": [],
"nodes": [
{
"id": "df5f56b9-4635-4e37-8a7d-817f3df75d9c",
"name": "Google Sheets Trigger",
"type": "n8n-nodes-base.googleSheetsTrigger",
"position": [
0,
-48
],
"parameters": {},
"typeVersion": 1
},
{
"id": "848e065e-eae8-421d-bbd9-e1a9b1eef0cd",
"name": "Create Invoice from Template",
"type": "n8n-nodes-base.googleDocs",
"position": [
608,
-48
],
"parameters": {},
"typeVersion": 2
},
{
"id": "e1a76867-2490-407c-8a99-f6ae5900bbd2",
"name": "AI Invoice Content Generation",
"type": "@n8n/n8n-nodes-langchain.openAi",
"position": [
224,
-48
],
"parameters": {},
"typeVersion": 1.8
},
{
"id": "dffb2fa4-b443-4efa-aabd-33c607d44430",
"name": "Send Invoice",
"type": "n8n-nodes-base.gmail",
"position": [
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],
"parameters": {},
"typeVersion": 2.1
},
{
"id": "a7ed9045-3db3-4552-9242-3e84d0f6cc62",
"name": "Until 3 Days Before Due Date",
"type": "n8n-nodes-base.wait",
"position": [
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],
"parameters": {},
"typeVersion": 1.1
},
{
"id": "fecc0ec5-443c-4cb6-8751-c8259f3c11dd",
"name": "Check Payment Status",
"type": "n8n-nodes-base.httpRequest",
"position": [
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-48
],
"parameters": {},
"typeVersion": 4.2
},
{
"id": "ebcdecb9-2e66-4677-924e-ebef5fae8633",
"name": "Is Paid?",
"type": "n8n-nodes-base.if",
"position": [
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],
"parameters": {},
"typeVersion": 2.2
},
{
"id": "f0023881-38c4-4341-89cf-3fcc8a2b52e0",
"name": "Pre-Due Reminder",
"type": "n8n-nodes-base.gmail",
"position": [
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],
"parameters": {},
"typeVersion": 2.1
},
{
"id": "3ca8c97d-2170-4e00-9f13-4703f93deec2",
"name": "Until 2 Days After Due Date",
"type": "n8n-nodes-base.wait",
"position": [
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],
"parameters": {},
"typeVersion": 1.1
},
{
"id": "4b743a9e-91b8-4cc1-b9b3-a13a7c851d78",
"name": "Overdue Alert",
"type": "n8n-nodes-base.slack",
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],
"parameters": {},
"typeVersion": 2.3
},
{
"id": "171efded-664a-4a15-a776-c034b6784c4b",
"name": "Update Status",
"type": "n8n-nodes-base.googleSheets",
"position": [
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240
],
"parameters": {},
"typeVersion": 4.6
},
{
"id": "8c7cc594-8735-48e5-9fff-dfd3791124a6",
"name": "Sticky Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
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],
"parameters": {
"content": ""
},
"typeVersion": 1
},
{
"id": "f3058313-e6d3-4833-ab1f-e9eba9ed5c02",
"name": "Sticky Note1",
"type": "n8n-nodes-base.stickyNote",
"position": [
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],
"parameters": {
"content": ""
},
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},
{
"id": "121ba2c1-c7d4-4c7f-b193-81013c2dbd91",
"name": "Sticky Note2",
"type": "n8n-nodes-base.stickyNote",
"position": [
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],
"parameters": {
"content": ""
},
"typeVersion": 1
},
{
"id": "5344a5b1-ebed-4d48-baa2-c6cbf992df67",
"name": "Sticky Note3",
"type": "n8n-nodes-base.stickyNote",
"position": [
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],
"parameters": {
"content": ""
},
"typeVersion": 1
},
{
"id": "c62bcaa6-9bea-44da-a257-22153a37ce19",
"name": "Sticky Note4",
"type": "n8n-nodes-base.stickyNote",
"position": [
-64,
160
],
"parameters": {
"content": ""
},
"typeVersion": 1
}
],
"active": false,
"settings": {
"executionOrder": "v1"
},
"versionId": "4c6ef985-4fb3-4f8a-b537-44570b2ca70e",
"connections": {
"Is Paid?": {
"main": [
[
{
"node": "Pre-Due Reminder",
"type": "main",
"index": 0
}
],
[
{
"node": "Update Status",
"type": "main",
"index": 0
}
]
]
},
"Send Invoice": {
"main": [
[
{
"node": "Until 3 Days Before Due Date",
"type": "main",
"index": 0
}
]
]
},
"Pre-Due Reminder": {
"main": [
[
{
"node": "Until 2 Days After Due Date",
"type": "main",
"index": 0
}
]
]
},
"Check Payment Status": {
"main": [
[
{
"node": "Is Paid?",
"type": "main",
"index": 0
}
]
]
},
"Google Sheets Trigger": {
"main": [
[
{
"node": "AI Invoice Content Generation",
"type": "main",
"index": 0
}
]
]
},
"Until 2 Days After Due Date": {
"main": [
[
{
"node": "Overdue Alert",
"type": "main",
"index": 0
}
]
]
},
"Create Invoice from Template": {
"main": [
[
{
"node": "Send Invoice",
"type": "main",
"index": 0
}
]
]
},
"Until 3 Days Before Due Date": {
"main": [
[
{
"node": "Check Payment Status",
"type": "main",
"index": 0
}
]
]
},
"AI Invoice Content Generation": {
"main": [
[
{
"node": "Create Invoice from Template",
"type": "main",
"index": 0
}
]
]
}
}
}
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About this workflow
This workflow is a sophisticated, end-to-end solution that automates the entire billing lifecycle, from invoice creation to intelligent payment reminders and status tracking. It's designed to give you complete control over your cash flow without the manual effort. Smart Invoice…
Source: https://n8n.io/workflows/6515/ — original creator credit. Request a take-down →
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