SOLVENDA - Billing Management System for ISPsDesigned to help Internet Service Providers (ISP) to manage their operations. This full-stack web application offers a comprehensive solution for user management, service provisioning and payment processing. Built with the needs of ISPs at its core, it simplifies the creation and management of clients. SOLVENDA support the following services: -INTERNET (Radius Manager) -IPTV (both Stalker Portal and Xtream Codes)-DVBC (TVCAS , conax-encryption)Currently used by 4 ISPs in Albania(Elbasan,Shkoder) with approximately 9200+ users.-Regional and Service Customization: Allows ISPs to define operating regions and services to specific regions (or POS) based on market demands.-Operator management, which enables the management and assignment of operators to regions, allowing them to manage clients and services efficiently within their designated areas and their specific permissions.-Dynamic Service Packets: It uses the creation of versatile service packets(bundles) with customizable pricing, accessible across selected regions, and linked to predefined main services for coherent service delivery.-Promotional Offers and Discounts: Innovative offer system that automatically applies discounts or extends service expiry based on predefined criteria.-Payment and Withdrawal System: A robust platform for processing payments and managing operator withdrawals and also supporting cash transactions while carefully recording financial activities for transparency and accountability.-Service Addition and Management: Streamlines the process of adding new services for clients, including specific configurations for Internet and IPTV services, enhancing service personalization and customer experience.-Automated User and Service Import: Supports auto-import for the clients and their respective services from major platforms/portals (Radius Manager, Stalker Portal,Xtream Codes), simplifying initial registration and service allocation.