Custom metrics are variables that you can define in Google Analytics 4 to track specific metrics that are relevant to your business.
These metrics can be used in conjunction with other dimensions and metrics in Google Analytics to provide a more detailed picture of your site’s performance.
For example, if you run an e-commerce website, you might create a custom metric to track the average value of an order on your site. This information can be used to better understand user behavior and improve your marketing efforts.
Custom metrics can be created for any type of data that is important to your business, and they can be used in various reports and analyses in Google Analytics 4.