Build an ISP Billing System with Google Apps Script & Claude Code
Build a Complete ISP Billing CRM & ERP Web App Using Google Apps Script, Google Sheets & Claude Code — with Automated WhatsApp & Call Features
In this tutorial I show how to turn a simple Google Spreadsheet into a powerful, production-ready ISP Billing ERP System — a full CRM web app with automated WhatsApp reminders, one-click call features, role-based permissions, expense tracking, lead management, complaint handling, and a real-time recovery dashboard. And the best part? We built this entire web application using Claude Code as our AI coding partner — writing and refining the Google Apps Script logic step by step. No expensive hosting. No monthly SaaS fees. Just Google Sheets + AI.
If you run a broadband, fiber, or internet service business in Pakistan, India, or anywhere — or you're a Google Apps Script developer who wants to build sellable automation and CRM solutions — this complete walkthrough is for you.
⭐ KEY FEATURES
✅ Customer CRM
✅ Billing & Invoicing Engine
✅ Payment Tracking (WhatsApp API integration)
✅ One-Click Call Features
✅ Expense Management
✅ Vendor & Bank Account Management
✅ Lead Management CRM
✅ Complaint System
✅ Collection Runs & Recovery Board
✅ Roles & Permissions
✅ Theme Customization
✅ Activity Logs & Notifications
✅ Light/Dark Mode & Login with Email OTP — professional auth system
✅ Staff/User Management — add, edit, update staff accounts
✅ Source Code : https://rameezscripts.com/code_file.p...
💼 NEED CUSTOM SOLUTIONS?
📩 Let's Work Together:
💬 WhatsApp: https://wa.me/923224083545
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TIMESTAMP
0:00 — ISP Billing System Demo (Google Sheets Web App)
1:52 — Dashboard Walkthrough & Quick Actions
2:25 — Customer CRM (360° View)
3:07 — Areas, Packages & Equipment Setup
4:22 — Running Billing & Generating Invoices
6:17 — Recording Payments, Printing Invoices & WhatsApp Reminders
6:40 — Expenses, Vendors & Bank Accounts
7:22 — Leads CRM & Call Features
8:52 — Complaint Management System
9:30 — Call Logs, Collection Runs & Recovery Board
11:10 — Staff, Activity Logs & Settings
12:09 — Build It Yourself with Claude Code (10-Part AI Prompt)
👀 WHO SHOULD WATCH
• ISP & broadband business owners in Pakistan, India, Bangladesh
• Google Apps Script developers learning AI-powered web app development
• Automation freelancers who want to build & sell CRM/ERP solutions
• Anyone who wants to build a web app without expensive servers — just Google Sheets
Hashtags :
#ClaudeCode #GoogleAppsScript #WhatsAppAutomation #CRM #ERP #GoogleSheets #WebApp #AIAutomation #WhatsAppAPI #BusinessAutomation #NoCode #SaaS #GoogleWorkspace #ISPBilling
📚 Helpful Resources:
• React Docs: https://react.dev/learn
• Google Apps Script Docs: https://developers.google.com/apps-sc...
• Google Sheets API: https://developers.google.com/sheets/api
⚠️DISCLAIMER
This content is for educational purposes. Please follow Google's Terms of Service and best practices when implementing solutions in production environments. Test thoroughly before using in live business operations.
👨💻 ABOUT THE CREATOR
Created by Rameez Imdad | Rameez Scripts - Since 2022