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Testing Measurement Protocol events: Method 1: Validation endpoint Returns validation result without recording: Method 2: DebugView Add debug flag to your event: Then view in GA4 → Admin → DebugView. Method 3: Real-Time reports 1. Send event without debug_mode 2. Go to Reports → Real-Time 3. Look for your event 4. May take 30-60 seconds Testing checklist: 1. ✓ Validation endpoint returns isValid: true 2. ✓ Event appears in DebugView 3. ✓ Event appears in Real-Time 4. ✓ Parameters captured correctly 5. ✓ Ecommerce data populates Common errors:
- "Invalid...