It is important to make the transition to Google Analytics GA4 in July for several reasons:

1. Migration to a new standard GA4 is the latest version of Google Analytics and represents an evolution from the previous version, Universal Analytics. Google is actively encouraging users to migrate to GA4 to take advantage of its advanced features and ability to provide deeper insights into user data.
2. Better understanding of the user journey GA4 focuses more on the user journey as a whole, rather than just individual sessions. It uses the event model rather than the page view model, providing a better understanding of how users interact with your site or application.
3. Integration of mobile application data GA4 offers better integration of data from mobile applications, which is essential in a world where more and more users are accessing services via mobile applications.
4. Improved data confidentiality GA4 also addresses growing concerns about data confidentiality. It enables better management of user consent and offers options for complying with regulations such as the GDPR.

It is important to note that the transition to GA4 may require adjustments to implementation and data monitoring. It is recommended that you familiarise yourself with the official Google documentation and work closely with your development team or marketing partner to ensure a smooth migration and continuity in your data analysis.