Automated Expense Tracking with AI and LINE Integration
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Streamline your personal or business finances by automatically tracking expenses. This workflow leverages LINE messaging for input, an AI agent for intelligent data extraction, and Google Sheets for organized storage.
About This Workflow
This n8n workflow offers a robust solution for automating expense tracking, eliminating manual data entry and ensuring accuracy. Users can send expense details, including receipts or descriptions, via a LINE chat. The workflow then ingeniously uses an AI agent (powered by Langchain and OpenAI's GPT-4.1-mini) to interpret the input, extract crucial financial information such as date, channel, amount, and category, and even analyze image content if provided. The extracted data is then meticulously organized and stored in a Google Sheet, providing a clear and accessible financial record. The system also intelligently handles duplicates and provides user feedback through LINE, ensuring a seamless and efficient financial management experience.
Key Features
- Effortless Input via LINE: Send expense details directly through your preferred messaging platform.
- Intelligent AI Data Extraction: Advanced AI categorizes, extracts, and structures financial information with high accuracy.
- Automated Google Sheets Integration: All tracked expenses are automatically logged into your dedicated Google Sheet.
- Duplicate Entry Prevention: Smart logic prevents redundant entries, keeping your data clean.
- Flexible Channel and Category Mapping: Customize expense categories and channels to fit your specific needs.
How To Use
- Set up the LINE Webhook: Configure the
Webhooknode with your desiredpathandhttpMethod(POST). - Configure AI Analysis: In the
AI Agentnode, define yoursystemMessageto guide the AI in extracting specific data points (Date, Channel, Channel Type, Expense Description, Amount, Category) and ensure thepassthroughBinaryImagesoption is enabled if you intend to process receipt images. - Connect to OpenAI: Ensure your
OpenAI Chat Modelnode is correctly authenticated with your OpenAI API credentials. - Integrate with Google Sheets: In the
Get row(s) in sheetnode, provide your Google Sheet'sdocumentIdandsheetName(gid) and authenticate with your Google Sheets account. - Define Reply Messages: Customize the JSON body within the
reply_to_line,reply_to_line_duplicated, andreply_to_line_no_spendingnodes to provide appropriate feedback to the user via LINE. - Configure LINE Channel Access Token: Replace
<Line Channel access token>placeholders in thehttpRequestnodes with your actual LINE Channel access token.
Apps Used
Workflow JSON
{
"id": "f49524e9-ea8d-42af-932f-cf55faa7f0b7",
"name": "Automated Expense Tracking with AI and LINE Integration",
"nodes": 10,
"category": "Operations",
"status": "active",
"version": "1.0.0"
}Note: This is a sample preview. The full workflow JSON contains node configurations, credentials placeholders, and execution logic.
Get This Workflow
ID: f49524e9-ea8d...
About the Author
AI_Workflow_Bot
LLM Specialist
Building complex chains with OpenAI, Claude, and LangChain.
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