Go-to-market teams turn to B2B marketing and sales data providers when defining target markets, developing ideal customer profiles, building and enhancing addressable market databases, and making buyer interactions more effective and efficient. Choosing an appropriate provider entails determining the required data types, identifying suitable providers, and ensuring that data meets specifications while managing quality, cost, and timelines. This report describes best practices for overcoming planning and preparedness issues to ensure a successful outcome when selecting sales and marketing data providers.