5. On the**Settings** tab, under**Basic Settings**, enter in the[Measurement ID](https://support.google.com/analytics/answer/9539598){:target='_blank'} associated with your GA4 web stream.

6. Set up your event mappings by following the steps in the Destinations Actions documentation on[Customizing mappings](/docs/connections/destinations/actions/#customizing-mappings){:target="_blank"}.

{% include components/actions-fields.html settings="true"%}

After you've set up at least one event in your**Mappings** tab, you should be able to see your events and their parameters using Google's[Realtime](https://support.google.com/analytics/answer/9271392){:target="_blank"} and[DebugView](https://support.google.com/analytics/answer/7201382){:target="_blank"} reports. Note that the DebugView report requires some additional configuration before you can use the report. These two reports show you the events users trigger on your website as the events are triggered.

Some parameters automatically populate prebuilt[dimensions and metrics](https://support.google.com/analytics/answer/9143382){:target="_blank"} in Google Analytics. For example, the parameters on the automatically collected and enhanced measurement events, as well as the required and optional parameters you send with the recommended events, populate pre-built dimensions and metrics.

Other parameters require you to create[custom dimensions and metrics](https://support.google.com/analytics/answer/10075209){:target="_blank"} to see the parameter values in Google Analytics. Whenever you create a custom parameter, you need to create a corresponding custom dimension or metric so you can see that data.

{% include components/actions-fields.html settings="true"%}

Parameters provide additional information about the ways users interact with your website. For example, when someone views a product you sell, you can include parameters that describe the product they viewed, such as the name, category, and price.