GA4 100 Questions (Part 3): Analysis, Troubleshooting, and Activation

Part 5: Data Analysis

Q 5.1: Why do GA4 and Google Ads Data Discrepancies Occur?
Answer: Discrepancies are normal (20-30% is acceptable). Reasons include:

1. Attribution Date: Google Ads credits the click date; GA4 credits the conversion date.

2. Reporting Delay: Google Ads is faster (3 hours); GA4 takes longer (up to 9 hours).

3. Scope: Google Ads tracks ad clicks; GA4 tracks all traffic.

4. Attribution Models: Differences in how credit is assigned to touchpoints.

Q 5.2: How do I troubleshoot Data Discrepancies?
Answer:

1. Check Configuration: Are time zones, currencies, and attribution models aligned?

2. Check Code: Are tags firing correctly on both platforms?

3. Simulate: Perform a test conversion and trace the data flow (e.g., compare Order IDs).

Q 5.3: What is the difference between Default and Explore Reports?
Answer:

• Default Reports: Pre-made dashboards for monitoring general health (Acquisition, Engagement, Monetization).

• Explore Reports: A powerful canvas for ad-hoc analysis. Use "Free Form" for pivot tables, "Funnel Exploration" for drop-off analysis, and "Path Exploration" to see user journeys.

Q 5.4: When should I use BigQuery?
Answer: Use BigQuery when GA4's built-in reports hit limits (e.g., sampling) or when you need to join GA4 data with third-party data (like CRM or offline sales) for custom analysis.

Part 6: Data Activation

Q 6.1: What is Activation?
Answer: Turning data into action. The most common forms are exporting Conversions for ad bidding and Audiences for remarketing.

Q 6.2: Why Can't I Export Audiences/Conversions?
Answer:

1. Check if Google Signals and Ad Personalization are enabled.

2. Ensure you have actually marked the Event as a "Conversion" in GA4.

3. Wait 24-48 hours for new audiences to populate.

Q 6.3: What are Predictive Audiences?
Answer: GA4 can automatically generate audiences like "Likely 7-day Purchasers." Requirements: You need at least 1,000 positive and 1,000 negative examples of the behavior in the last 28 days for the model to work.

Part 7: Support & Commercials

Q 7.1: What is the pricing for GA4 360?
Answer: GA4 360 starts at $30,000/year (significantly lower than UA 360). Pricing scales based on event volume. It is sold via GMP Partners, not directly by Google.

Q 7.2: How do I get support?
Answer:

• Free Version: Use the Help Center or Community Forums.

• Paid Version: Contact your GMP Partner or submit a support ticket directly in the UI.

Q 7.3: Is there a certification for GA4?
Answer: Yes, Google offers official GA4 certification exams via the Skillshop platform.