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

Gemiddeld complexiteit Trigger11 knooppunten🏷️ Invoice Processingdoor Rahul Joshi

Overzicht

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

Gebruikte knooppunten

Google DriveAI AgentAzure OpenAI Chat Model

Workflow-voorvertoning

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

Hoe het werkt

  1. 1

    Trigger

    De workflow start met een trigger-trigger.

  2. 2

    Verwerking

    Gegevens stromen door 11 knooppunten, connecting agent, extractfromfile, googledrive.

  3. 3

    Uitvoer

    De workflow voltooit zijn automatisering en levert het resultaat aan de geconfigureerde bestemming.

Knooppuntdetails (11)

GO

Google Drive

googleDrive

#1
AI

AI Agent

n8n-nodes-langchain.agent

#2
AZ

Azure OpenAI Chat Model

n8n-nodes-langchain.lmChatAzureOpenAi

#3

Hoe deze workflow te importeren

  1. 1Klik op de knop JSON downloaden rechts om het workflowbestand op te slaan.
  2. 2Open uw n8n-instantie. Ga naar Workflows → Nieuw → Importeren uit bestand.
  3. 3Selecteer het gedownloade bestand classify-auto-sort-invoices-in-google-drive-with-gpt-4o en klik op Importeren.
  4. 4Stel inloggegevens in voor elk serviceknooppunt (API-sleutels, OAuth, enz.).
  5. 5Klik op Workflow testen om te controleren of alles werkt, activeer het vervolgens.

Of plak rechtstreeks in n8n → Importeren uit JSON:

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

Integraties

agentextractfromfilegoogledrivelmchatazureopenaimanualtriggersplitinbatchesswitch

Haal deze workflow op

Download en importeer met één klik

JSON downloadenBekijken op n8n.io
Knooppunten11
Complexiteitmedium
Triggertrigger

Gemaakt door

Rahul Joshi

Rahul Joshi

@rahul08

Tags

agentextractfromfilegoogledrivelmchatazureopenaimanualtriggersplitinbatchesswitch

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