Courier Management System is an end-to-end admin web application designed for courier agencies, logistics operators, and delivery service providers. Built using Native/Raw PHP, HTML5, and Bootstrap, this system offers a clean, ultra-fast, and easy-to-customize codebase without relying on heavy frameworks. It allows administrators to easily monitor parcel statuses, manage registered customers and system users, handle Cash on Delivery (COD) collection, track failed or pending deliveries, and manage administrative permissions with ease. Key Features: Real-time Analytics Dashboard: Overview cards for Total Customers, Total Parcels, Pending Parcels, Delivered Items, In Transit, Out for Delivery, Failed Deliveries, Total COD, and Total Collected Amount. Parcel & Shipment Tracking: Easily manage and track parcel status from dispatch to final delivery. Role & Permission Management: Granular user management system to assign roles and permissions to admins, managers, and delivery agents. COD & Payment Management: Efficiently record, verify, and manage Cash on Delivery payments and collected revenue. Customer & User Directory: Centralized list to manage customer profiles, delivery history, and user credentials. Reports & Insights: Dedicated reporting module for operational tracking and financial summaries. Lightweight & Clean Code: Simple, clean, and well-structured Raw PHP codebase with Bootstrap responsive UI.