The client was in the process of launching their iOS and Android application and sought assistance in implementing GA4. They desired a comprehensive GA4 solution to effectively monitor their user's behavior. The project entailed developing a tracking plan to ensure the capture of crucial user actions. Subsequently, the client requested a document outlining code changes to be shared with their developers, along with guidance on proper event implementation to ensure accurate and reliable data. Finally, I conducted walkthrough calls to guide them on utilizing GA4 for their analytics requirements.