Classify invoices and route them to Google Drive folders with easybits and Slack — n8n Workflow

Medium complexity⚡ Trigger15 nodes🏷️ Invoice Processingby Felix

Overview

What This Workflow Does Upload a document (PDF, PNG, JPEG) via a web form and let easybits Extractor classify it into one of your defined categories. Based on the classification result and a confidence score, the document is automatically sorted into the correct Google Drive folder. Low-confidence or unrecognized documents are flagged for manual review via Slack.

How It Works User uploads a file through the hosted web form The binary file is converted to base64 and sent to easybits easybits ret

Nodes used

HTTP RequestSlackGoogle Drive

Workflow Preview

📋 Form Upload
Accepts a file upload via a web form. Supports PDF, PNG
📄 Extract to Base64
Converts the uploaded binary file into a base64-encoded
🔗 Build Data URI
Dynamically reads the MIME type from the uploaded file
🔍 Parse Result
Extracts document_type and confidence_score from the ea
📄 Invoice Classification Workflow
(powered by easybits)
What This Workflow Does
Upload a document (PDF, PNG, JPEG) via a web form and l
🚀 Send to easybits
POSTs the data URI to the easybits Extractor API pipeli
🔗 Attach Original File
Merges the classification result (JSON) with the origin
✅ Confidence Check
Routes based on the confidence_score:
- > 0.5 → Category Router
- ≤ 0.5 → Needs Review folder + Slack notification
🗂️ Category Router
Routes the invoice to the correct Google Drive folder b
1. `medical_invoice`
2. `restaurant_invoice`
3. `hotel_invoice`
4. `trades_invoice`
📤 Upload to Google Drive Folders
Uploads the invoice to the Medical folder in Google Dri
⚠️ Upload to Review Folder
Uploads unclassified or low-confidence invoices to the
💬 Slack Notification
Sends a message to `#n8n-invoice-review` with the docum
E
Extract from File
⚡
O
On form submission
E
Edit Fields
easybits Extractor (Clas…
P
Parse Result
C
Category Router
C
Confidence Check
Upload to Review Folder
Upload to Telecom Folder
Upload to Trades Folder
Upload to Hotel Folder
Upload to Restaurant Fol…
Upload to Medical Folder
Review Message
A
Attach Original File
15 nodes16 edges

How it Works

  1. 1

    Trigger

    The workflow starts with a trigger trigger.

  2. 2

    Process

    Data flows through 15 nodes, connecting extractfromfile, formtrigger, googledrive.

  3. 3

    Output

    The workflow completes its automation and delivers the result to the configured destination.

Node Details (15)

HT

HTTP Request

httpRequest

#1
SL

Slack

slack

#2
GO

Google Drive

googleDrive

#3

How to Import This Workflow

  1. 1Click Download JSON button on the right to save the workflow file.
  2. 2Open your n8n instance. Go to Workflows → New → Import from file.
  3. 3Select the downloaded classify-invoices-and-route-them-to-google-drive-folders-with-easybits-and-slack file and click Import.
  4. 4Set up credentials for each service node (API keys, OAuth, etc.).
  5. 5Click Test Workflow to verify everything works, then activate it.

Or paste directly in n8n → Import from JSON:

{ "name": "Classify invoices and route them to Google Drive folders with easybits and Slack", "nodes": [...], ...}

Integrations

extractfromfileformtriggergoogledrivehttprequestifmergesetslackswitch

Get This Workflow

Download and import in one click

Download JSONView on n8n.io
Nodes15
Complexitymedium
Triggertrigger
CategoryInvoice Processing

Created by

Felix

Felix

@easybits

Tags

extractfromfileformtriggergoogledrivehttprequestifmergesetslackswitch
⚡

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