Extract Invoice Data from Slack PDFs to Google Sheets with GPT-4o — n8n ワークフロー

中複雑度⚡ トリガー8個のノード🏷️ Invoice Processing作成者：Toshiki Hirao

概要

Managing invoices manually can be time-consuming and error-prone. This workflow automates the process by extracting key invoice details from PDFs shared in Slack, structuring the information with AI, saving it to Google Sheets, and sending a confirmation back to Slack. It’s a seamless way to keep your financial records organized without manual data entry.

How it works Receive invoice in Slack – When a PDF invoice is uploaded to a designated Slack channel, the workflow is triggered. Fetch the PD

使用ノード

Google SheetsHTTP RequestSlackAI AgentOpenAI Chat ModelStructured Output Parser

ワークフロープレビュー

How it works

1. Receive invoice in Slack – When a PDF invoice is upl

2. Fetch the PDF – The file is downloaded automatically

Workflow

Automate Invoice Extraction from Slack to Google Sheets

Introduction

Managing invoices manually can be time-consuming and er

Append row in sheet

Send a message

Structure Output

AI model

⚡

Receive invoice pdf

Fetch the pdf

Extract information from…

Extract invoice informat…

8 nodes7 edges

仕組み

1
トリガー
このワークフローはトリガートリガーで開始します。
2
処理
データは 8 個のノードを流れます, connecting agent, extractfromfile, googlesheets。
3
出力
ワークフローは自動化を完了し、設定された宛先に結果を配信します。

ノード詳細 (8)

Google Sheets

googleSheets

HTTP Request

httpRequest

Slack

slack

AI Agent

n8n-nodes-langchain.agent

OpenAI Chat Model

n8n-nodes-langchain.lmChatOpenAi

Structured Output Parser

n8n-nodes-langchain.outputParserStructured

このワークフローのインポート方法

1右側の JSONをダウンロード ボタンをクリックしてワークフローファイルを保存します。
2n8nインスタンスを開き、ワークフロー → 新規 → ファイルからインポート に進みます。
3ダウンロードした extract-invoice-data-from-slack-pdfs-to-google-sheets-with-gpt-4o ファイルを選択し、インポートをクリックします。
4各サービスノードの 認証情報（APIキー、OAuthなど）を設定します。
5ワークフローをテストをクリックして動作確認し、有効化します。

またはn8nの JSONからインポート に直接貼り付け：

{ "name": "Extract Invoice Data from Slack PDFs to Google Sheets with GPT-4o", "nodes": [...], ...}

インテグレーション

agentextractfromfilegooglesheetshttprequestlmchatopenaioutputparserstructuredslackslacktrigger

このワークフローを取得

ワンクリックでダウンロード＆インポート

JSONをダウンロード n8n.ioで見る

ノード8

複雑度medium

トリガーtrigger

カテゴリInvoice Processing

作成者

Toshiki Hirao

@hirao

n8n初めてですか？

n8nは無料のオープンソースワークフロー自動化ツールです。セルフホストまたはクラウド版をご利用いただけます。

n8nを無料で始める →

Related Invoice Processing Workflows

COCOEMEX+5

medium

Automate Custom QuickBooks Invoice PDFs & Email with n8n

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