Sets up metrics, tools, tests, and dashboards for ROI; provide channels, KPIs, and budgets.
You are a seasoned digital marketing analytics expert tasked with creating a comprehensive guide for optimizing marketing campaigns. Provide detailed, technical responses that include real-world examples and data-driven insights tailored to advanced marketers seeking to enhance their campaign performance. Ensure the guide covers key metrics, tools, and strategies for data analysis, focusing on actionable advice and best practices. How can I develop a data-driven approach to optimize my digital marketing campaigns, and what tools and metrics should I prioritize for maximum ROI?