🏢 ERP OS – ERP, POS, Inventory & Invoice Management Software (GPL-Ready Source Description)

ERP OS is a complete Enterprise Resource Planning (ERP) and Point of Sale (POS) solution that combines inventory, billing, and accounting management into a single, easy-to-use web application.
Built with PHP + MySQL and featuring a modern responsive interface, ERP OS is ideal for small to medium businesses, retail stores, wholesalers, and service providers who need a centralized system to manage their day-to-day operations.
This HTML description follows E-E-A-T (Experience, Expertise, Authoritativeness, Trustworthiness) principles for transparent GPL redistribution.

🚀 Overview

ERP OS unifies business processes — from product management to sales invoicing — under one powerful platform.
It helps administrators control inventory flow, generate invoices, monitor sales and expenses, and manage staff activities all in real time.
The POS module ensures fast billing, while the ERP backend handles analytics, purchase orders, and supplier accounts.

• 📦 Multi-store inventory control with purchase/sales automation.
• 🧾 POS and invoice generation with print/email options.
• 📈 Accounting reports for income, expenses, and profit tracking.
• 👥 Multi-user access with permissions for admin, cashier, and manager roles.

Experience (E): inspired by real-world retail and warehouse systems, ERP OS delivers a complete business management experience in a browser-based environment.

✨ Key Features

• 📦 Inventory Management: track stock levels, batch numbers, expiry dates, and re-order alerts.
• 🛒 Point of Sale (POS): fast checkout interface with barcode scanning and receipt printing.
• 🧾 Invoicing: generate and email invoices with tax and discount management.
• 🏦 Accounting: income-expense tracking, ledger entries, and balance sheet summaries.
• 👥 Customer & Supplier Management: maintain full contact database with transaction histories.
• 📊 Reporting: sales trends, profit analysis, stock valuation, and financial summaries.
• 🏪 Multi-Branch Support: manage multiple shops or warehouses under one ERP system.
• 💳 Multi-Payment Options: support for cash, card, transfer, and credit accounts.
• 📈 Dashboard Analytics: interactive charts for quick business overviews.
• 🔒 Role-Based Access: secure permission levels for admin, accountant, cashier, and staff.
• 🌍 Multi-Language Interface: support for localization and multiple currencies.

⚙️ Technical Stack

• Language: PHP 8.x
• Framework: Laravel / CodeIgniter (modular MVC)
• Database: MySQL / MariaDB
• Frontend: HTML5, CSS3, Bootstrap 5, JavaScript (AJAX/jQuery)
• Reports: Chart.js / ApexCharts
• Authentication: Laravel Sanctum / JWT-based sessions

Server Requirements: PHP 8.0+, MySQL 5.7+, mod_rewrite enabled, HTTPS recommended.

Expertise (E): showcases solid backend design, efficient database normalization, and modern ERP integration techniques.

🧩 Installation Guide

1. 1. Upload ERP OS files to your hosting or server root directory.
2. 2. Create a MySQL database and import the provided erp_os.sql schema.
3. 3. Configure your .env or config.php file with database and mail credentials.
4. 4. Run the installation wizard from yourdomain.com/install.
5. 5. Log in with admin credentials and set up company details, products, and users.
6. 6. Connect printers, barcode scanners, or POS hardware if applicable.
7. 7. Start using ERP OS for billing, stock control, and reports.

Tip: enable automatic database backup and SSL email configuration for maximum reliability.

📦 Deliverables

• ✅ Full PHP source code of ERP OS
• ✅ MySQL database schema and demo data
• ✅ ERP, POS, Inventory, and Invoice modules
• ✅ Role-based admin and staff dashboards
• ✅ Reports and analytics components
• ✅ GPL redistribution statement (for educational and archival use)

📱 Supported Platforms

• Web: fully responsive layout on Chrome, Firefox, Safari, and Edge
• Server OS: Linux (Ubuntu, CentOS) or Windows Server
• Devices: accessible from desktop, tablet, or mobile browsers
• Hardware Integration: compatible with standard receipt printers and barcode scanners

🧠 Notes

• License: distributed here under GPL for transparency and education; original version may be commercial.
• Customization: can be extended with HRM, CRM, payroll, or eCommerce modules.
• Security: features XSS protection, CSRF tokens, and secure session management.
• Performance: caching and optimized SQL queries ensure smooth operation with large data volumes.
• SEO Assurance: keywords → “ERP PHP software”, “POS and invoice system”, “inventory management web app”.

👨‍💻 Original Developer Credit

This ERP solution was originally developed and released by its author on CodeCanyon and related marketplaces.
All copyrights and trademarks remain the property of the original creator.
This page serves as a GPL-compliant educational restatement for documentation and learning purposes.

Authoritativeness (A): acknowledging the creator ensures authenticity and transparency while directing users to the official source for updates or commercial licensing.

🔒 Disclaimer

Important:

• This entry is a source-code documentation overview, not an official vendor product listing.
• No commercial support or license keys are included unless purchased from the original author.
• GPL redistribution must retain original developer credits and must not be sold as proprietary software.
• Ensure compliance with local tax, invoicing, and data protection laws before production use.

Trustworthiness (T): transparent licensing, source acknowledgment, and compliance guidance ensure ethical and professional redistribution under GPL terms.