Smart Invoice Collection System with GPT-4.1, Gmail & Google Sheets — Workflow n8n

Moyen complexité Déclencheur12 nœuds🏷️ Invoice Processing👁 304 vuespar Nick Saraev

Aperçu

Smart Invoice Collection System with OpenAI, Gmail & Google Sheets

Categories: Financial Automation, AI Business Tools, Cash Flow Management

This workflow creates an intelligent invoice collection system that automatically follows up on overdue invoices using AI-powered personalization. The system monitors your invoice database, analyzes email history to prevent inappropriate follow-ups, and sends increasingly urgent but professional reminders at precise intervals. Built to solve one of the bi

Nœuds utilisés

Google SheetsGmailOpenAI

Aperçu du workflow

📊 STEP 1: Invoice Data Collection
This workflow monitors overdue invoices from Google She
1. Get Rows: Pulls invoice data from your tracking spre
2. Edit Fields: Calculates day
🔍 STEP 2: Email History Intelligence
Prevents sending follow-ups at inappropriate times:
1. Loop Over Items: Processes each overdue invoice indi
2. Gmail Get Messages: Retrieves r
🧠 STEP 3: AI-Powered Follow-up Generation
Creates intelligent, context-aware follow-up emails:
OpenAI Processing:
• Analyzes conversation history to determine if follow-
• Se
📧 STEP 4: Automated Email Delivery
Sends personalized follow-ups automatically:
1. Filter: Only proceeds with emails that AI approved (
2. Gmail Draft/Send: Creates profess
W
When clicking ‘Execute w…
Google Sheets
E
Edit Fields
F
Filter
L
Loop Over Items
Gmail
A
Aggregate
OpenAI
E
Edit Fields1
F
Filter1
Gmail1
S
Schedule Trigger
12 nodes12 edges

Comment ça fonctionne

  1. 1

    Déclencheur

    Le workflow démarre avec un déclencheur déclencheur.

  2. 2

    Traitement

    Les données transitent par 12 nœuds, connecting aggregate, filter, gmail.

  3. 3

    Sortie

    Le workflow termine son automatisation et livre le résultat à la destination configurée.

Détails des nœuds (12)

GO

Google Sheets

googleSheets

#1
GM

Gmail

gmail

#2
OP

OpenAI

n8n-nodes-langchain.openAi

#3

Comment importer ce workflow

  1. 1Cliquez sur le bouton Télécharger JSON à droite pour enregistrer le fichier du workflow.
  2. 2Ouvrez votre instance n8n. Accédez à Workflows → Nouveau → Importer depuis un fichier.
  3. 3Sélectionnez le fichier smart-invoice-collection-system-with-gpt-41-gmail-google-sheets téléchargé et cliquez sur Importer.
  4. 4Configurez les identifiants pour chaque nœud de service (clés API, OAuth, etc.).
  5. 5Cliquez sur Tester le workflow pour vérifier que tout fonctionne, puis activez-le.

Ou collez directement dans n8n → Importer depuis JSON :

{ "name": "Smart Invoice Collection System with GPT-4.1, Gmail & Google Sheets", "nodes": [...], ...}

Intégrations

aggregatefiltergmailgooglesheetsmanualtriggeropenaischeduletriggersetsplitinbatches

Obtenir ce workflow

Téléchargez et importez en un clic

Télécharger JSONVoir sur n8n.io
Nœuds12
Complexitémedium
Déclencheurtrigger
Vues304

Créé par

Nick Saraev

Nick Saraev

@nicksaraev

Tags

aggregatefiltergmailgooglesheetsmanualtriggeropenaischeduletriggersetsplitinbatches

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Automate Custom QuickBooks Invoice PDFs & Email with n8n

Standard accounting templates often fail to reflect a premium brand identity. This sophisticated n8n workflow bridges the gap between financial record-keeping and professional client presentation. By moving beyond the native limitations of QuickBooks Online, this automation enables businesses to generate high-end, multi-page PDF invoices that align perfectly with their corporate styling. The process begins the moment a new invoice is generated in QuickBooks, triggering a webhook that captures real-time billing data. The workflow then utilizes advanced HTML-to-File conversion and custom Code nodes to structure data into a polished, branded layout. It handles complex logic such as line-item merging and multi-page formatting automatically. Once the document is rendered, the system bypasses generic 'no-reply' senders by routing the finalized PDF through your preferred email provider. This ensures a seamless, white-labeled experience for your clients while eliminating the manual overhead of exporting, styling, and attaching files. Ideal for agencies and service providers, this flow guarantees that your most frequent touchpoint—the bill—is as professional as your work. **Common Use Cases:** - High-end creative agencies requiring bespoke, white-labeled billing documents for premium clients. - Automated recurring subscription billing where custom tax disclosures or localized branding are required. - Service-based businesses needing to attach dynamic project reports or terms of service directly to QuickBooks invoices.

🔗 Webhook·12 nodes