If you're using Google Tag Manager to manage your website's tracking and marketing tags, chances are high you are using the dataLayer object. The dataLayer is a JavaScript object that stores information about the page and its interactions, which can be used to pass data to tracking and marketing tags. 

The launch of GA4 has been a bumpy ride. GA4 is a significant change of the previous version of Google Analytics, Universal Analytics. It introduces new features, data modeling and reporting that require a significant learning curve for users. Additionally, some users have reported technical issues with GA4, such as data discrepancies,