Bad data leads to bad decisions
Google Analytics 4 is powerful, but it is easy to set up wrong. And when tracking is wrong, every report, budget call, and campaign decision built on it is wrong too. The worst part is that most tracking issues are silent. Nothing looks broken. The numbers are just off.
Here are the GA4 mistakes we find most often in our analytics audits.
1. No clear conversion events
Many accounts track page views and scrolls but never mark the actions that matter, like form submissions, purchases, calls, or booked meetings, as key events. Without them, GA4 cannot tell you which channels actually drive results.
2. Duplicate tags firing twice
When GA4 is added through both a plugin and Google Tag Manager, events often fire twice. Your conversions look great on paper, but your real results do not match. A quick tag audit usually reveals this.
3. Broken or missing UTM tags
UTM parameters tell GA4 where a visitor came from. If your emails, social posts, and paid campaigns use messy or missing UTMs, traffic lands in "Direct" or "Unassigned" and you lose credit for your best channels.
4. Consent mode is not set up
If you use a cookie banner but have not configured consent mode properly, you may be losing a large share of your data, or collecting it in a way that does not follow privacy rules. Both are problems.
5. Internal traffic is counted
Your own team visiting the site every day can inflate sessions and distort engagement data, especially for smaller brands. Filtering internal traffic keeps your numbers honest.
6. GA4 and your CRM never talk
GA4 can tell you a form was submitted. Your CRM tells you if that lead became a customer. When the two are not connected, you cannot see which campaigns bring in revenue, only which ones bring in clicks.
7. Relying only on browser tracking
Ad blockers and browser privacy features can stop tracking scripts from loading. Server side tagging with GTM sends data more reliably and gives you more control over what is shared.
The bottom line
Good marketing starts with data you can trust. If your numbers do not add up, Geek Audit can review your tracking setup, fix what is broken, and train your team to keep it clean going forward.
A simple GA4 health check
- List your top 3 to 5 business actions and confirm each one is a key event
- Compare GA4 conversions with your ad platforms and CRM for the same week
- Check Tag Manager and plugins for duplicate GA4 tags
- Review your traffic sources for large "Unassigned" or "Direct" numbers
- Test your cookie banner and consent mode settings
