Automated PDF Invoice Processing & Approval Flow using OpenAI and Google Sheets — n8n 工作流

复杂度 触发器14 个节点🏷️ Invoice Processing👁 9,817 次查看作者:Billy Christi

概览

Who is this for?

This workflow is ideal for:

Finance teams** that need to process incoming invoices faster with minimal errors Small to mid-sized businesses** that want to automate invoice intake, review, and storage Operations managers** who require approval workflows and centralized record-keeping

What problem is this workflow solving?

Manually processing invoices is time-consuming, error-prone, and often lacks structure. This workflow solves those challenges by:

Automating the intake of

使用的节点

Google SheetsGoogle DriveGmailAI AgentOpenAI Chat ModelStructured Output Parser

工作流预览

SETUP REQUIRED
Author: Billy Christi
Copy the Google Sheet template here:
👉 [PDF Invoice Parser with Approval Workflow – Google
🧾 Automated PDF Invoice Processing & Approva
What This Template Does:
- Monitors Google Drive, Gmail, and a web form for inco
-
📋 WORKFLOW PROCESS OVERVIEW
1. Invoice Collection
Invoices are captured through three triggers: new PDFs
👋 Hi, I’m Billy
!My Photo
I help businesses build n8n workflows & AI automation p
Need help with n8n or AI Automation p
modelparser
OpenAI Chat Model
Structured Output Parser
I
Invoice Folder Monitor
Download Invoice PDF
Invoice Parser AI Agent
Insert Invoice Data
Send Invoice for Approval
M
Monitor Email Attachments
U
Upload Invoice (PDF) Form
E
Extract Text from Drive …
E
Extract Text from Email …
E
Extract Text from Form PDF
C
Check Approval Decision
Send Rejection Alert
14 nodes14 edges

工作原理

  1. 1

    触发器

    工作流由 触发器 触发器启动。

  2. 2

    处理

    数据流经 14 个节点, connecting agent, extractfromfile, formtrigger。

  3. 3

    输出

    工作流完成自动化并将结果发送到配置的目标。

节点详情 (14)

GO

Google Sheets

googleSheets

#1
GO

Google Drive

googleDrive

#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

如何导入此工作流

  1. 1点击右侧 下载 JSON 按钮保存工作流文件。
  2. 2打开你的 n8n 实例,依次点击 工作流 → 新建 → 从文件导入
  3. 3选择下载的 automated-pdf-invoice-processing-approval-flow-using-openai-and-google-sheets 文件并点击导入。
  4. 4为每个服务节点配置 凭证(API 密钥、OAuth 等)。
  5. 5点击 测试工作流 验证一切正常,然后激活它。

或直接在 n8n → 从 JSON 导入 中粘贴:

{ "name": "Automated PDF Invoice Processing & Approval Flow using OpenAI and Google Sheets", "nodes": [...], ...}

集成

agentextractfromfileformtriggergmailgmailtriggergoogledrivegoogledrivetriggergooglesheetsiflmchatopenaioutputparserstructured

获取此工作流

一键下载并导入

下载 JSON在 n8n.io 上查看
节点14
复杂度medium
触发器trigger
查看次数9,817

创建者

Billy Christi

Billy Christi

@billy

标签

agentextractfromfileformtriggergmailgmailtriggergoogledrivegoogledrivetriggergooglesheetsiflmchatopenai

n8n 新手?

n8n 是一款免费开源的工作流自动化工具,支持自托管或使用云版本。

免费获取 n8n →

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