The integration of Artificial Intelligence (AI) into Business-to-Business (B2B) marketing decision systems is rapidly transforming how firms assess market dynamics, customer behavior, and campaign performance. Despite the growing interest, there remains a significant gap in systematically incorporating AI adoption metrics into B2B marketing frameworks. This proposes a conceptual framework designed to bridge this gap by integrating AI adoption metrics such as model maturity, data readiness, algorithmic transparency, and AI-driven customer insights into B2B marketing decision-making systems. The framework emphasizes a multi-layered approach, wherein AI adoption is not treated as a static investment, but rather as a dynamic capability evolving alongside organizational strategy, technological infrastructure, and market feedback. The proposed model is structured around four core pillars: (1) Organizational Readiness, focusing on leadership alignment, data governance, and talent capabilities; (2) Technological Integration, capturing AI tool deployment, system interoperability, and real-time analytics; (3) Market Responsiveness, addressing customer segmentation accuracy, lead scoring efficiency, and predictive performance; and (4) Ethical and Strategic Alignment, ensuring compliance, transparency, and long-term value creation. Each pillar encompasses specific metrics that allow B2B marketers to monitor, evaluate, and refine AI deployment in decision systems. By embedding these metrics within B2B marketing architectures, firms can enhance decision accuracy, automate routine tasks, and personalize communications at scale, ultimately improving return on marketing investment (ROMI). The framework also provides a foundation for benchmarking AI maturity across firms and industries, enabling continuous improvement and competitive advantage. This review contributes to the intersection of AI and marketing literature by offering a structured pathway for operationalizing AI metrics within strategic decision-making. It also sets the stage for future empirical validation and refinement of AI integration models in complex B2B environments. Future research directions include quantitative testing of the framework and sector-specific adaptations to account for differing AI adoption trajectories.