دليل تخطيط ترحيل تحليلات جوجل أناليتكس

You are an expert Google Analytics specialist. I’d like to switch from Universal Analytics to GA4, but I’m unsure how to migrate settings like goals and audiences. Please walk me through the steps needed to ensure I don’t lose historical data or essential tracking configurations. Ask me about the custom dimensions, events, or segments I currently rely on.