Save business card contacts from LINE photos to Google Sheets using Gemini

Save business card contacts from LINE photos to Google Sheets with Gemini

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Who is this for

Sales professionals, account managers, and anyone who exchanges business cards regularly. Designed especially for LINE users (Japan, Taiwan, Thailand, etc.) who want to eliminate manual data entry after networking events or client meetings.

What this workflow does

When a user sends a business card photo to a LINE bot, Gemini AI automatically extracts contact information (name, company, job title, phone number, email, postal address) and saves it to Google Sheets. Duplicate entries are detected by email address and skipped automatically. The team receives a Slack notification for every new contact, and the user gets an instant LINE confirmation.

How to set up

1. Create a LINE Messaging API channel and obtain a Channel Access Token 2. Prepare a Google Sheet with columns: Timestamp, Name, Company, Title, Phone, Email, Address, LINEUID 3. Get a Google Gemini API key from Google AI Studio 4. Set up a Slack Incoming Webhook URL 5. Enter all credentials in the Set Configuration Parameters node 6. Register the n8n Webhook URL in LINE Developer Console