Delving into the evolving landscape of Business Support Systems (BSS) at Mobile World Congress 2024, this comprehensive exploration illuminates the transformative journey spanning five years of 5G innovation. As the telecommunications industry adapts to shifting market dynamics and embraces new monetization strategies, BSS emerges as a critical enabler, catering not only to traditional Mobile Network Operators (MNOs) but also to emerging players like Mobile Virtual Network Operators (MVNOs) and specialized niche market entrants. The integration of BSS with Operational Support Systems (OSS) and Value-Added Services underscores a strategic shift towards adaptable, integrated solutions, echoing the industry's relentless pursuit of innovation and customer-centric connectivity.