Workflow Description

This workflow automates the processing of credit card statement emails from multiple banks. It extracts important payment details, stores them in Google Sheets , and creates calendar reminders in Google Calendar . Additionally, it allows users to update the payment status once the bill has been paid.

Key Features

1. Email Processing : Retrieves credit card statement emails from eight Taiwanese banks .
2. PDF Parsing : Extracts payment due date and amount from email content or attached PDF files.
3. Google Sheets Integration : Logs extracted data into a Google Sheets document for record-keeping.
4. Google Calendar Integration : Creates Google Calendar events as reminders for due payments.
5. Webhook for Payment Updates : Allows users to update the payment status via a webhook.

Node Configurations

1. Email Retrieval

• Purpose : Fetches credit card statement emails from Gmail.
• Configuration :
  • Email Filters :
    • SinoPac Bank : from:(newebill.banksinopac.com.tw) SinoPac Bank Credit Card E-Statement Notification
    • Cathay United Bank : from:(service@pxbillrc01.cathaybk.com.tw) Cathay United Bank Monthly E-Statement
    • CTBC Bank : from:(ebill@estats.ctbcbank.com) CTBC Bank Credit Card E-Statement
    • Taipei Fubon Bank : from:(rs@cf.taipeifubon.com.tw) Taipei Fubon Bank Credit Card Statement
    • E.SUN Commercial Bank : from:(estatement@esunbank.com) E.SUN Commercial Bank Credit Card E-Statement
    • DBS Bank : from:(eservicetw@dbs.com) DBS Bank Credit Card E-Statement
    • Union Bank of Taiwan : from:(聯邦銀行信用卡) Union Bank of Taiwan Credit Card E-Statement (Year Month)
    • Taishin International Bank : from:(webmaster@bhurecv.taishinbank.com.tw) Taishin International Bank Credit Card E-Statement

2. Extract Payment Information

• Purpose : Extracts payment due date, total amount, and minimum payment amount.
• Methods :
  • Text-based Extraction : Uses regex to parse email body.
  • PDF Parsing : Extracts text from PDF attachments.

3. Data Processing and Storage

3.1. Consolidate Extracted Data

• Purpose : Standardizes extracted payment details.
• Data Fields :
  • payment_due_date
  • payment_amount
  • minimum_payment
  • email_id
  • bank
  • email_subject

3.2. Google Sheets Integration

• Purpose : Stores the extracted data in a structured format.
• Configuration :
  • Sheet Name : n8n-Credit Card Payment Reminder
  • Columns :
    • calendar_id
    • Paid
    • Billing Period
    • Amount
    • Minimum Payment
    • Bank
    • email_id

4. Google Calendar Integration

4.1. Create Calendar Reminders

• Purpose : Generates reminders for upcoming payments.
• Configuration :
  • Event Title : Credit Card Payment - {{ bank }}
  • Due Date : payment_due_date
  • Reminders :
    • 30 minutes before
    • 60 minutes before
    • 1 day before

4.2. Update Payment Status

• Purpose : Updates the event calendar once payment is made.
• Configuration :
  • Webhook URL : Automatically updates the Google Calendar event title and description.

5. Webhooks for Payment Updates

• Purpose : Users can mark a payment as paid via a webhook.
• Configuration :
  • Webhook Path : darrell_demo_creditcard_pay_update_path
  • Updates :
    • Marks the payment as Paid
    • Updates Google Calendar and Google Sheets