Conversion Rate Optimization (CRO) is a complex process that requires regular maintenance to adapt to changing customer needs, and involves defining primary conversion events, mapping conversion funnels, and using data science to identify key moments between major events. The first step in improving conversion is to determine the primary conversion events, which vary by industry and depend on a company's goals, such as "complete purchase" in eCommerce or "sign up for a free trial" in SaaS. The second step involves mapping out the major events in a conversion funnel, ideally consisting of 4 to 6 steps, to create a clear path for users to follow. The third step highlights the importance of data science in identifying where users drop off in the funnel, as traditional funnels may not reveal specific points of attrition. Advanced analytics tools can help identify these dropoff points, but if such tools are unavailable, manual analysis is still possible by examining the user flow and identifying issues at each step. Understanding these initial steps can help companies improve their CRO efforts by addressing potential roadblocks in the user journey.