# Event Property

Statsig enables you to break down metrics into a single set of non-overlapping dimensions for detailed analysis.

For example, you can break down an event such as **add-to-cart** into product categories such as *sports*, *toys*, *appliances*, *electronics*. To do this, log **add-to-cart** events and provide the product category in the event's **value** field. Refer to the [Statsig SDK reference guide](https://docs.statsig.com/client/javascript-sdk#event-logging) to learn more.

Statsig enables you to define up to four custom dimensions for an event (one through the **value** field and three through **metadata** fields). To configure these custom event fields, go to *Metrics > Events*, select the event you want to configure, and then go to the **Setup** tab for that event.

{% figure %}
![Event property configuration](https://docs.statsig.com/images/metrics/metric-dimensions/209886245-c26f569b-a4d4-4882-9d9c-f65f3c1ba43b.png)
{% /figure %}

When you provide custom dimensions with logged events, you can break down the impact on the total **add-to-cart** events by category in Pulse. This breakdown lets you identify the category most impacted by your experiment.

{% figure %}
![Pulse results breakdown by product category](https://docs.statsig.com/images/metrics/metric-dimensions/162332284-259ea614-8cb6-4c9d-aebd-3e41f9092a64.png)
{% /figure %}

Statsig recommends keeping the number of distinct dimensions in your logging below 8. Tracking dimensions involves additional computational and storage resources, so Statsig prioritizes notable dimensions that make up a significant portion of your traffic. Statsig tracks dimensions that make up more than 5% of your total event volume. Lower-frequency dimensions generally have more statistical noise and wider confidence intervals, and Statsig buckets these as "Other".

Statsig also supports metric dimensions for custom metrics that are **Aggregations**. To set this up, log your dimension as a **value** and the number to tally as a metadata field.

This is the old metric dimension page. Statsig renamed it to Event Property.