Becoming a product line manager can be a difficult journey, but there are some steps and tips which can help. Start by working as a product manager or product owner to gain experience and learn the skills of the trade. As you grow, seek out opportunities to expand your scope and responsibility, and take on more complex products or features. You can also volunteer for cross-functional or cross-product projects to demonstrate your ability to manage multiple products and stakeholders. When you feel ready, apply for a product line manager role and prepare for the interviews. Showcase your portfolio of products, achievements and impact, skills, knowledge, vision, and passion for the product line. Be ready to answer questions about your product line strategy, roadmap, development, delivery, performance, and challenges.