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

Moyen complexité Déclencheur11 nœuds🏷️ Invoice Processingpar Rahul Joshi

Aperçu

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

Nœuds utilisés

Google DriveAI AgentAzure OpenAI Chat Model

Aperçu du workflow

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

Comment ça fonctionne

  1. 1

    Déclencheur

    Le workflow démarre avec un déclencheur déclencheur.

  2. 2

    Traitement

    Les données transitent par 11 nœuds, connecting agent, extractfromfile, googledrive.

  3. 3

    Sortie

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

Détails des nœuds (11)

GO

Google Drive

googleDrive

#1
AI

AI Agent

n8n-nodes-langchain.agent

#2
AZ

Azure OpenAI Chat Model

n8n-nodes-langchain.lmChatAzureOpenAi

#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 classify-auto-sort-invoices-in-google-drive-with-gpt-4o 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": "Classify & Auto-Sort Invoices in Google Drive with GPT-4o", "nodes": [...], ...}

Intégrations

agentextractfromfilegoogledrivelmchatazureopenaimanualtriggersplitinbatchesswitch

Obtenir ce workflow

Téléchargez et importez en un clic

Télécharger JSONVoir sur n8n.io
Nœuds11
Complexitémedium
Déclencheurtrigger

Créé par

Rahul Joshi

Rahul Joshi

@rahul08

Tags

agentextractfromfilegoogledrivelmchatazureopenaimanualtriggersplitinbatchesswitch

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