Invoice Processor & Validator with OCR, AI & Google Sheets โ€” n8n ์›Œํฌํ”Œ๋กœ

๋ณดํ†ต ๋ณต์žก๋„โšก ํŠธ๋ฆฌ๊ฑฐ14๊ฐœ์˜ ๋…ธ๋“œ๐Ÿท๏ธ Invoice Processing๐Ÿ‘ 13,688ํšŒ ์กฐํšŒ์ž‘์„ฑ์ž: Dhrumil Patel

๊ฐœ์š”

๐Ÿ“ Say goodbye to manual invoice checking! This smart workflow automates your entire invoice processing pipeline using AI, OCR, and Google Sheets.

โš™๏ธ What This Workflow Does:

๐Ÿ“ฅ 1. Reads an invoice PDF โ€” Select a local PDF invoice from your machine.

๐Ÿ” 2. Extracts raw text using OCR โ€” Converts scanned or digital PDFs into readable text.

๐Ÿง  3. AI Agent processes the text โ€” Transforms messy raw text into clean JSON using natural language understanding.

๐Ÿงฑ 4. Structures and refines the JSON โ€” Conv

์‚ฌ์šฉ๋œ ๋…ธ๋“œ

Google SheetsCodeAI AgentOpenRouter Chat Model

์›Œํฌํ”Œ๋กœ ๋ฏธ๋ฆฌ๋ณด๊ธฐ

Reading Invoice's PDF File Locally
Extracting Details From Invoice PDF
Processing Output
Fallback On Error
Extracting Line Items
Sending Data To G-Sheet
Fetch Master Data & Validating Invoice Extrac
Update Validation Result
model
โšก
W
When clicking โ€˜Test workโ€ฆ
OpenRouter Chat Model
S
Split Out
Post-Processing
Text Extractor
R
Read/Write Files from Disk
E
Extract from File
I
If
S
Send Raw Text Again
Validation
Send Invoice Data
Fetch Master Data
Update Results
G
Generate Unique Key
14 nodes14 edges

์ž‘๋™ ์›๋ฆฌ

  1. 1

    ํŠธ๋ฆฌ๊ฑฐ

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  2. 2

    ์ฒ˜๋ฆฌ

    ๋ฐ์ดํ„ฐ๊ฐ€ 14๊ฐœ์˜ ๋…ธ๋“œ๋ฅผ ํ†ตํ•ด ํ๋ฆ…๋‹ˆ๋‹ค, connecting agent, code, extractfromfile.

  3. 3

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๋…ธ๋“œ ์„ธ๋ถ€ ์ •๋ณด (14)

GO

Google Sheets

googleSheets

#1
CO

Code

code

#2
AI

AI Agent

n8n-nodes-langchain.agent

#3
OP

OpenRouter Chat Model

n8n-nodes-langchain.lmChatOpenRouter

#4

์ด ์›Œํฌํ”Œ๋กœ ๊ฐ€์ ธ์˜ค๋Š” ๋ฐฉ๋ฒ•

  1. 1์˜ค๋ฅธ์ชฝ์˜ JSON ๋‹ค์šด๋กœ๋“œ ๋ฒ„ํŠผ์„ ํด๋ฆญํ•˜์—ฌ ์›Œํฌํ”Œ๋กœ ํŒŒ์ผ์„ ์ €์žฅํ•ฉ๋‹ˆ๋‹ค.
  2. 2n8n ์ธ์Šคํ„ด์Šค๋ฅผ ์—ด๊ณ  ์›Œํฌํ”Œ๋กœ โ†’ ์ƒˆ๋กœ ๋งŒ๋“ค๊ธฐ โ†’ ํŒŒ์ผ์—์„œ ๊ฐ€์ ธ์˜ค๊ธฐ๋กœ ์ด๋™ํ•ฉ๋‹ˆ๋‹ค.
  3. 3๋‹ค์šด๋กœ๋“œ๋œ invoice-processor-validator-with-ocr-ai-google-sheets ํŒŒ์ผ์„ ์„ ํƒํ•˜๊ณ  ๊ฐ€์ ธ์˜ค๊ธฐ๋ฅผ ํด๋ฆญํ•ฉ๋‹ˆ๋‹ค.
  4. 4๊ฐ ์„œ๋น„์Šค ๋…ธ๋“œ์— ๋Œ€ํ•œ ์ž๊ฒฉ ์ฆ๋ช…๏ผˆAPI ํ‚ค, OAuth ๋“ฑ๏ผ‰์„ ์„ค์ •ํ•ฉ๋‹ˆ๋‹ค.
  5. 5์›Œํฌํ”Œ๋กœ ํ…Œ์ŠคํŠธ๋ฅผ ํด๋ฆญํ•˜์—ฌ ๋ชจ๋“  ๊ฒƒ์ด ์ž‘๋™ํ•˜๋Š”์ง€ ํ™•์ธํ•œ ํ›„ ํ™œ์„ฑํ™”ํ•ฉ๋‹ˆ๋‹ค.

๋˜๋Š” n8n โ†’ JSON์—์„œ ๊ฐ€์ ธ์˜ค๊ธฐ์— ์ง์ ‘ ๋ถ™์—ฌ๋„ฃ๊ธฐ:

{ "name": "Invoice Processor & Validator with OCR, AI & Google Sheets", "nodes": [...], ...}

ํ†ตํ•ฉ

agentcodeextractfromfilegooglesheetsiflmchatopenroutermanualtriggerreadwritefilesetsplitout

์ด ์›Œํฌํ”Œ๋กœ ๊ฐ€์ ธ์˜ค๊ธฐ

ํ•œ ๋ฒˆ์˜ ํด๋ฆญ์œผ๋กœ ๋‹ค์šด๋กœ๋“œ ๋ฐ ๊ฐ€์ ธ์˜ค๊ธฐ

JSON ๋‹ค์šด๋กœ๋“œn8n.io์—์„œ ๋ณด๊ธฐ
๋…ธ๋“œ14
๋ณต์žก๋„medium
ํŠธ๋ฆฌ๊ฑฐtrigger
์กฐํšŒ์ˆ˜13,688
์นดํ…Œ๊ณ ๋ฆฌInvoice Processing

์ œ์ž‘์ž

Dhrumil Patel

Dhrumil Patel

@itechdp

ํƒœ๊ทธ

agentcodeextractfromfilegooglesheetsiflmchatopenroutermanualtriggerreadwritefilesetsplitout
โšก

n8n์„ ์ฒ˜์Œ ์‚ฌ์šฉํ•˜์‹œ๋‚˜์š”?

n8n์€ ๋ฌด๋ฃŒ ์˜คํ”ˆ์†Œ์Šค ์›Œํฌํ”Œ๋กœ ์ž๋™ํ™” ๋„๊ตฌ์ž…๋‹ˆ๋‹ค. ์ž์ฒด ํ˜ธ์ŠคํŒ…ํ•˜๊ฑฐ๋‚˜ ํด๋ผ์šฐ๋“œ ๋ฒ„์ „์„ ์‚ฌ์šฉํ•˜์„ธ์š”.

n8n ๋ฌด๋ฃŒ๋กœ ์‹œ์ž‘ํ•˜๊ธฐ โ†’

Related Invoice Processing Workflows

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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 touchpointโ€”the billโ€”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.

๐Ÿ”— Webhookยท12 nodes