The traditional SaaS model is facing a fundamental shift with the rise of GenAI (Generative Artificial Intelligence). Companies like Klarna have transformed their data architecture to support GenAI initiatives, eliminating over 1,200 SaaS applications in the process. This fragmentation challenge coincides with Microsoft's prediction that traditional business applications will transform in the AI era, shifting logic to an "AI tier" that operates across multiple data sources. To succeed with GenAI, organizations need a unified knowledge layer, which is where knowledge graphs come in. A knowledge graph enables dynamic flexibility by design, allowing AI to efficiently reason over complex, multi-domain relationships. This flexibility makes them ideal for AI-driven systems, supporting dynamic retrieval, contextual understanding, and deeper insights across disparate data sources. Companies can start unifying their SaaS data for GenAI by building a knowledge graph as an abstraction layer on top of their existing SaaS data, creating agentic workflows with GraphRAG, and expanding incrementally to consolidate applications.