GA4: Common Setup Issues

1. GA4 is not working > The GA4 tracking code is missing

2. For e-commerce websites:
2.1 No e-commerce tracking code is implemented.
2.2 No currency/proper currency is set in the purchase event. This can be done in the GTM. 
      In UA this setup was not required.
      Note: The event parameter "currency" should be EUR/USD etc

3. The events are not working in GA4, as they were copied and pasted from UA.
This is not considered as a good practise.

Admin > Data Streams > More Tagging settings > these events start with "ga" & you need to have also gtag implemented.
If this setup is chosen, GA4's flexibility is lost.

4. Debug View is not working
In order to work properly you need:
a) GTM preview mode enabled, or 
b) Google Analytics Debugger extension in your browser, or
c) If you in all events a parameter called [debug_mode = true}, then every time this event is fired, you would see it in the Debug View

5. Dublicated Data (events) > This might be caused if you copy you events (that you've already set in GTM) in your GA4 account.

6. No/Wrong Data Retention
Admin > Data Settings > Switch to 14 Months period


7. Exclude your website from stats
Admin > Data Settings > Data filters
You need to identify the internal traffic.


8. For e-commerce websites:
E-commerce websites do not exclude traffic from Paypal, etc
How you can do that:
Admin > Data Stream > More tagging settings > List unwanted referrals 
(This can be done for all payment providers)