GPT-4.1-mini Powered Invoice Processing from Gmail to Google Sheets with Slack — Flujo de trabajo n8n

Alta complejidad Disparador17 nodos🏷️ Invoice Processingpor koichi nagino

Descripción general

AI-Powered Invoice Processing from Gmail to Google Sheets with Slack Approval This workflow completely automates your invoice processing pipeline. It triggers when a new invoice email arrives in Gmail, uses AI to extract key data from the PDF attachment, logs it in a Google Sheet, and sends a request to Slack with simple links for one-click approval or rejection. Who's it for? This template is perfect for small business owners, finance teams, freelancers, and anyone looking to eliminate the manu

Nodos utilizados

Google SheetsSlackGmailAI AgentOpenAI Chat ModelStructured Output Parser

Vista previa del flujo de trabajo

This workflow automates your invoice processi
Trigger
This node starts the workflow when an email matching th
Setup:
1. Add Gmail credentials.
2. Change the search query `q` to your invoice keyword
Data Preparation
These nodes download the PDF from the email and extract
AI Extraction & Logging
An AI model extracts structured data from the text, whi
Setup:
1. Add OpenAI & Google Sheets credentials.
2. Enter your Sheet I
Slack Approval Request
Sends a message to Slack containing the invoice details
Setup:
1. Add Slack credentials.
2. Enter your Slack Channel ID.
3. IMPORT
Approval/Rejection Handling
These nodes listen for clicks on the Slack links. They
modelparser
1
1. New Invoice Email Rec…
2. Get Email Attachments
3
3. Extract Text from PDF
4
4. Prepare Text for AI
5. Extract Invoice Data …
OpenAI Chat Model
W
Webhook (Approve)
W
Webhook (Reject)
10a. Send Approval Confi…
10b. Send Rejection Conf…
6. Log Invoice to Google…
Structured Output Parser
9a. Update Status to App…
9b. Update Status to Rej…
7. Send Approval Request…
8
8a. Extract Invoice ID
8
8b. Extract Invoice ID
17 nodes14 edges

Cómo funciona

  1. 1

    Disparador

    El flujo de trabajo comienza con un disparador disparador.

  2. 2

    Procesamiento

    Los datos fluyen a través de 17 nodos, connecting agent, extractfromfile, gmail.

  3. 3

    Salida

    El flujo de trabajo completa su automatización y entrega el resultado al destino configurado.

Detalles de nodos (17)

GO

Google Sheets

googleSheets

#1
SL

Slack

slack

#2
GM

Gmail

gmail

#3
AI

AI Agent

n8n-nodes-langchain.agent

#4
OP

OpenAI Chat Model

n8n-nodes-langchain.lmChatOpenAi

#5
ST

Structured Output Parser

n8n-nodes-langchain.outputParserStructured

#6

Cómo importar este flujo de trabajo

  1. 1Haz clic en el botón Descargar JSON a la derecha para guardar el archivo del flujo de trabajo.
  2. 2Abre tu instancia de n8n. Ve a Flujos de trabajo → Nuevo → Importar desde archivo.
  3. 3Selecciona el archivo gpt-41-mini-powered-invoice-processing-from-gmail-to-google-sheets-with-slack descargado y haz clic en Importar.
  4. 4Configura las credenciales para cada nodo de servicio (claves API, OAuth, etc.).
  5. 5Haz clic en Probar flujo de trabajo para verificar que todo funcione, luego actívalo.

O pega directamente en n8n → Importar desde JSON:

{ "name": "GPT-4.1-mini Powered Invoice Processing from Gmail to Google Sheets with Slack", "nodes": [...], ...}

Integraciones

agentextractfromfilegmailgmailtriggergooglesheetslmchatopenaioutputparserstructuredsetslackwebhook

Obtener este flujo de trabajo

Descarga e importa con un solo clic

Descargar JSONVer en n8n.io
Nodos17
Complejidadhigh
Disparadortrigger

Creado por

koichi nagino

koichi nagino

@nagi

Etiquetas

agentextractfromfilegmailgmailtriggergooglesheetslmchatopenaioutputparserstructuredsetslackwebhook

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🔗 Webhook·12 nodes