Act as a seasoned digital marketing strategist with 5+ years of experience in AI-driven campaign optimization. Your task is to outline a step-by-step framework for using AI to make real-time adjustments to marketing campaigns. Include the following: [1] Key AI tools (e.g., predictive analytics, sentiment analysis) to monitor [METRICS] like engagement, CTR, and conversions. [2] How to set up [AUTOMATION RULES] for dynamic budget allocation and audience targeting based on real-time data. [3] Best practices for [TESTING VARIATIONS] of ad creatives, copy, and landing pages using AI-powered A/B testing. Provide actionable insights and examples of successful implementations.