Automated Trip Expense Claim Form With OpenAI Agent & Google Drive — n8n Workflow

Medium complexity⚡ Trigger12 nodes🏷️ Invoice Processing👁 96 viewsby Trung Tran

Overview

🧾 Automated Trip Expense Claim Form With OpenAI Agent & Google Drive Watch the demo video below:

> This workflow is designed for employees who need to submit expense claims for business trips. It automates the process of extracting data from receipts/invoices, logging it to a Google Sheet, and notifying the finance team via email. 👤 Who’s it for Ideal users: Employees submitting business trip expense claims HR or Admins reviewing travel-related reimbursements Finance teams responsible for pr

Nodes used

Send EmailGoogle SheetsGoogle DriveCodeAI AgentOpenAI Chat ModelStructured Output Parser

Workflow Preview

🧾 Automated Trip Expense Reporting Workflow
👤 Who’s it for
This workflow is designed for employees who need to sub
!Alt text
1.1 – Extract and Parse Invoices with AI Agen
Uploaded PDF receipts are processed using OCR and AI. T
3. Send Claim Summary to Finance Team
A formatted email with the employee’s business trip and
!Alt text
1.2. Store Invoices in Google Sheet
The parsed invoice records are transformed and appended
2. Transform and Generate HTML Email
This step prepares a professional email summary by comb
!Alt text
modelparser
⚡
O
On form submission
Transform Output
Upload file
E
Extract from File
DocClaim Assistant Agent
Append row in sheet
Transform invoice record
Structured Output Parser
Create HTML Email Template
Send trip expense reques…
Handle multiple files
GPT
12 nodes11 edges

How it Works

  1. 1

    Trigger

    The workflow starts with a trigger trigger.

  2. 2

    Process

    Data flows through 12 nodes, connecting agent, code, emailsend.

  3. 3

    Output

    The workflow completes its automation and delivers the result to the configured destination.

Node Details (12)

SE

Send Email

emailSend

#1
GO

Google Sheets

googleSheets

#2
GO

Google Drive

googleDrive

#3
CO

Code

code

#4
AI

AI Agent

n8n-nodes-langchain.agent

#5
OP

OpenAI Chat Model

n8n-nodes-langchain.lmChatOpenAi

#6
ST

Structured Output Parser

n8n-nodes-langchain.outputParserStructured

#7

How to Import This Workflow

  1. 1Click Download JSON button on the right to save the workflow file.
  2. 2Open your n8n instance. Go to Workflows → New → Import from file.
  3. 3Select the downloaded automated-trip-expense-claim-form-with-openai-agent-google-drive file and click Import.
  4. 4Set up credentials for each service node (API keys, OAuth, etc.).
  5. 5Click Test Workflow to verify everything works, then activate it.

Or paste directly in n8n → Import from JSON:

{ "name": "Automated Trip Expense Claim Form With OpenAI Agent & Google Drive", "nodes": [...], ...}

Integrations

agentcodeemailsendextractfromfileformtriggergoogledrivegooglesheetslmchatopenaioutputparserstructured

Get This Workflow

Download and import in one click

Download JSONView on n8n.io
Nodes12
Complexitymedium
Triggertrigger
Views96
CategoryInvoice Processing

Created by

Trung Tran

Trung Tran

@trungtran

Tags

agentcodeemailsendextractfromfileformtriggergoogledrivegooglesheetslmchatopenaioutputparserstructured
⚡

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🔗 Webhook·12 nodes