Act as a Senior Product Manager with 10+ years of experience in scaling SaaS products. Provide a detailed framework for managing product scalability, focusing on [TECHNICAL INFRASTRUCTURE], [TEAM STRUCTURE], and [CUSTOMER FEEDBACK LOOPS]. Include actionable steps like modular architecture design, cross-functional team alignment, and iterative testing. Address common pitfalls such as [OVER-ENGINEERING], [POOR DOCUMENTATION], and [LACK OF PERFORMANCE METRICS]. Use real-world examples from companies like [COMPANY A] or [COMPANY B] to illustrate best practices. Ensure the response is structured, data-driven, and tailored for [STARTUPS] or [ENTERPRISES] depending on the audience.