Classify & Auto-Sort Invoices in Google Drive with GPT-4o — n8n Workflow

Mittel Komplexität Auslöser11 Knoten🏷️ Invoice Processingvon Rahul Joshi

Übersicht

Description:

Automatically classify invoices by industry (Retail, Manufacturing, or EdTech) using GPT-4o-powered AI parsing in this intelligent n8n automation template. Designed for teams managing high-volume billing data, this workflow fetches invoices from Google Drive, extracts PDF text, classifies each document using AI, and automatically moves files to the correct folder based on the predicted industry.

This smart auto-sorting system turns your invoice processing into a zero-touch AI work

Verwendete Knoten

Google DriveAI AgentAzure OpenAI Chat Model

Workflow-Vorschau

Search files and folders (Google Drive)
Type: Google Drive node
Operation: Search for files and folders
What it does:
Searches for files in a specific Google Drive folder (I
Re
Download File (Google Drive)
Type: Google Drive node
Operation: Download
What it does:
Downloads each file found by the previous node
Uses the file ID from the search results (={{ $json.id
Extract from File (Extract from File)
Type: Extract from File node
Operation: PDF extraction
What it does:
Extracts text content from PDF files
Converts the downloaded PDF invoices into readable tex
Loop Over Items (Split in Batches)
Type: Split in Batches node
What it does:
Processes multiple files one by one in a loop
Ensures each invoice is processed individually
Manages batch processing of
AI Agent (LangChain Agent)
Type: LangChain AI Agent
What it does:
Analyzes the extracted text content from invoices
Uses a system prompt that instructs it to classify invo
Azure OpenAI Chat Model (Language Model)
Type: Azure OpenAI Chat Model
Model: GPT-4o-mini
What it does:
Provides the AI language model for the AI Agent
Connected to the AI Agent to power the classif
Switch (Conditional Logic)
Type: Switch node
What it does:
Routes the workflow based on AI classification results
Has three conditional branches:
If output equals "Retail" → Route to Retail folder
model
Download File
W
When clicking ‘Execute w…
AI Agent
Azure OpenAI Chat Model
L
Loop Over Items
E
Extract from File
S
Switch
Search files and folders
Manufacturing
Retail
EdTech
11 nodes13 edges

So funktioniert es

  1. 1

    Auslöser

    Der Workflow startet mit einem auslöser-Auslöser.

  2. 2

    Verarbeitung

    Die Daten fließen durch 11 Knoten, connecting agent, extractfromfile, googledrive.

  3. 3

    Ausgabe

    Der Workflow schließt seine Automatisierung ab und liefert das Ergebnis an das konfigurierte Ziel.

Knotendetails (11)

GO

Google Drive

googleDrive

#1
AI

AI Agent

n8n-nodes-langchain.agent

#2
AZ

Azure OpenAI Chat Model

n8n-nodes-langchain.lmChatAzureOpenAi

#3

So importieren Sie diesen Workflow

  1. 1Klicken Sie rechts auf die Schaltfläche JSON herunterladen, um die Workflow-Datei zu speichern.
  2. 2Öffnen Sie Ihre n8n-Instanz. Gehen Sie zu Workflows → Neu → Aus Datei importieren.
  3. 3Wählen Sie die heruntergeladene Datei classify-auto-sort-invoices-in-google-drive-with-gpt-4o und klicken Sie auf Importieren.
  4. 4Richten Sie Anmeldedaten für jeden Dienstknoten ein (API-Schlüssel, OAuth usw.).
  5. 5Klicken Sie auf Workflow testen, um zu überprüfen, ob alles funktioniert, und aktivieren Sie es dann.

Oder direkt in n8n → Aus JSON importieren einfügen:

{ "name": "Classify & Auto-Sort Invoices in Google Drive with GPT-4o", "nodes": [...], ...}

Integrationen

agentextractfromfilegoogledrivelmchatazureopenaimanualtriggersplitinbatchesswitch

Diesen Workflow holen

Herunterladen und mit einem Klick importieren

JSON herunterladenAuf n8n.io ansehen
Knoten11
Komplexitätmedium
Auslösertrigger

Erstellt von

Rahul Joshi

Rahul Joshi

@rahul08

Tags

agentextractfromfilegoogledrivelmchatazureopenaimanualtriggersplitinbatchesswitch

Neu bei n8n?

n8n ist ein kostenloses Open-Source-Workflow-Automatisierungstool. Selbst hosten oder die Cloud-Version nutzen.

n8n kostenlos holen →

Related Invoice Processing Workflows

COCOEMEX+5
medium

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