Learn business growth with Google Analytics 4 › Forums › Google Analytics 4 › What is the impact of calling window.ga on July 1st during GA4 migration? › Reply To: What is the impact of calling window.ga on July 1st during GA4 migration?
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Once UA properties stop collecting data, if you continue to use the old tracking code (like the window.ga method), it’s not going to send data to Google Analytics anymore. This might not necessarily show up as Javascript errors in your console, the event information just won’t be passed along anymore. So, you won’t see these events in your Analytics data. It is recommended to transition to Google Analytics 4 (GA4) and update your custom event tracking to suit the GA4 system.