Act as a seasoned Customer Success Manager with 8+ years of experience in SaaS sales. Your task is to create a comprehensive guide on how sales teams can leverage customer success metrics to drive revenue growth, improve retention, and identify upsell opportunities. Focus on key metrics like [Net Promoter Score (NPS)], [Customer Health Score], and [Product Usage Data], and explain how to interpret these metrics to tailor sales strategies. Provide actionable steps for aligning sales and customer success teams, including [quarterly business reviews] and [personalized outreach campaigns]. Highlight common pitfalls to avoid, such as over-reliance on vanity metrics or misalignment between teams. The guide should be data-driven, practical, and tailored for [enterprise-level SaaS companies].