# Metric Family

> For AI agents: a documentation index is available at [/llms.txt](/llms.txt). Append `.md` to any page URL for markdown, or send `Accept: text/markdown`.

Metric Families let you create metric variants as child metrics of a parent metric. When you update a parent metric, the changes cascade automatically to its child metrics, keeping all related metric definitions consistent. Use a Metric Family to manage a large catalog of near-identical metric variants without editing each one manually.

> **Info:**
>
> Child metrics of **SUM** and **COUNT** parent metrics support these modifiable configs:
>
> - Add metric source filter
> - Outlier Management
> - Variance Reduction
> - Cohorts and Delayed Data

## Create a child metric

To create a child metric, select the **Create Child Metric** option in the dropdown menu in the top right corner of a metric.

![Creating a child metric](https://docs.statsig.com/images/metrics/metric-family/create-child.png)

You can track the child metrics for a given parent metric using the metric family icon in the top right.

![Tracking tree of child metrics](https://docs.statsig.com/images/metrics/metric-family/tree-child.png)

## Deleting and archiving

When you delete or archive a parent metric, Statsig deletes or archives all of its child metrics as well. When you re-enable the parent, Statsig automatically restores those child metrics. You can't restore child metrics disabled through the parent individually; you can only re-enable them by restoring the parent metric.

![Metric deletion confirmation message](https://docs.statsig.com/images/metrics/metric-family/delete.png)

If you delete or archive a child metric independently of its parent, you can restore the child metric on its own. The restored child metric returns as a standalone metric without its original parent-child relationship.

## In experiments

When you select a Parent Metric in Experiment setup, Statsig adds all of its child metrics as well. You can remove any metrics you don’t need in the experiment.

![Adding parent metric to an experiment will add all child metrics with it](https://docs.statsig.com/images/metrics/metric-family/in-experiment.png)