One of the biggest challenges in CRO is identifying the right changes to make. Without enough data, businesses end up making optimizations that don’t even improve performance. Misinterpreting analytics or focusing on the wrong metrics also leads to ineffective strategies. Another challenge is balancing conversions with user experience; aggressive tactics like excessive popups might increase short-term conversions but hurt long-term engagement. Implementing CRO changes across teams is also complex, as it demands collaboration between marketing, design, and development teams.