GPT-4.1-mini Powered Invoice Processing from Gmail to Google Sheets with Slack — рабочий процесс n8n

Высокая сложность⚡ Триггер17 узлов🏷️ Invoice Processingот koichi nagino

Обзор

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

Использованные узлы

Google SheetsSlackGmailAI AgentOpenAI Chat ModelStructured Output Parser

Предпросмотр рабочего процесса

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

Как это работает

  1. 1

    Триггер

    Рабочий процесс запускается триггером триггер.

  2. 2

    Обработка

    Данные проходят через 17 узлов, connecting agent, extractfromfile, gmail.

  3. 3

    Вывод

    Рабочий процесс завершает автоматизацию и доставляет результат в настроенное место назначения.

Детали узлов (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

Как импортировать этот рабочий процесс

  1. 1Нажмите кнопку Скачать JSON справа, чтобы сохранить файл рабочего процесса.
  2. 2Откройте ваш экземпляр n8n. Перейдите в Рабочие процессы → Новый → Импорт из файла.
  3. 3Выберите скачанный файл gpt-41-mini-powered-invoice-processing-from-gmail-to-google-sheets-with-slack и нажмите Импортировать.
  4. 4Настройте учётные данные для каждого узла сервиса (ключи API, OAuth и т.д.).
  5. 5Нажмите Протестировать рабочий процесс, чтобы убедиться в правильной работе, затем активируйте его.

Или вставьте напрямую в n8n → Импорт из JSON:

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

Интеграции

agentextractfromfilegmailgmailtriggergooglesheetslmchatopenaioutputparserstructuredsetslackwebhook

Получить этот рабочий процесс

Скачайте и импортируйте одним кликом

Скачать JSONПросмотреть на n8n.io
Узлы17
Сложностьhigh
Триггерtrigger
КатегорияInvoice Processing

Создан

koichi nagino

koichi nagino

@nagi

Теги

agentextractfromfilegmailgmailtriggergooglesheetslmchatopenaioutputparserstructuredsetslackwebhook
⚡

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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