The Tool You Need to Fix Unassigned Traffic in GA4 Reports

💡Use this tool to create UTM parameters that strictly follow the GA4 default channel rules to help reduce unassigned traffic. 👇

For example, consider the following URL of a Facebook ad:

https://www.abc.com/book-maths-and-stats/?utm_source=facebook&utm_medium=fb-ad&utm_campaign=pdf-book-campaign&utm_content=ad1

Here, ‘fb-ad’ is not a system-defined traffic medium.

So Google will label all the website traffic from this URL under the ‘unassigned’ channel group.

But this is not what you want.

You want this traffic to be grouped under the ‘paidsocial‘ channel.

To do that, rewrite the UTM parameters like the one below:

https://www.abc.com/book-maths-and-stats/?utm_source=facebook&utm_medium=paid&utm_campaign=pdf-book-campaign&utm_content=ad1

Here, ‘paid’ is a system-defined traffic medium.

Use system-defined traffic sources and system-defined traffic mediums wherever possible.

A system-defined source is one that is already defined/recognized by GA4 as a traffic source.

Similarly, a system-defined medium is one that is already defined/recognized by GA4 as a traffic medium.

However, memorising channel rules and definitions for accurate tagging is not easy.

This is where the tools like utmprep.com can come in handy.

You can use this tool to create UTM parameters that strictly follow the GA4 default channel rules.

It will automatically suggest to you what traffic source or medium to use.