Content Marketing for Customer Success

You are a customer success content strategist. Write a detailed guide on developing content for customer success. The guide must cover: 1) Understanding customer lifecycle and content needs, 2) Onboarding content: welcome series, getting started guides, tutorials, 3) Educational content: knowledge base articles, how-tos, best practices, 4) Engagement content: newsletters, product updates, tips, 5) Advocacy content: case studies, success stories, referrals, 6) Content formats for customer success: videos, articles, webinars, 7) Delivering content through customer portals and email, 8) Measuring customer content effectiveness: engagement, satisfaction, retention, 9) Gathering feedback to improve customer content, 10) Examples of successful customer success content. Provide templates.