## Tagging metrics

To create a metric tag, click on **Metrics** in the left hand navigation menu, and click on the [Metrics Catalog](https://console.statsig.com/4TLCtqzctSqusYcQljJLJE/metrics/metrics_catalog) tab.

{% figure %}
![Metrics catalog navigation](/images/metrics/create-metric-tags/172474361-3c47eb33-0d44-457f-b3be-dc61cd085cb8.png)
{% /figure %}

In the **Metrics Catalog** tab, click on the **Tags** filter icon in the upper right-hand corner, and then tap **Manage** in the drop-down. This takes you to the tag manager within Project Settings for all tags in your project.

{% figure %}
![Tags filter management](/images/metrics/create-metric-tags/172474897-7eb84784-ff21-4461-87cd-6a0c45bb7ef7.png)
{% /figure %}

Tap on the **Create New Tag** in the upper right-hand corner of the tag manager tab to create a new tag. Enter a name and description for your new tag. Click on **Create**.

{% figure %}
![Create new tag dialog](/images/metrics/create-metric-tags/154555162-9309a3f5-0278-4a04-8620-245408e5d6d0.png)
{% /figure %}

After creating the tag, add it to any metric using the **+** icon when you hover on the metric. To see which metrics are associated with a given tag, refer to the **Tags** tab within Project Settings.

{% figure %}
![Metrics catalog with tag management interface](/images/metrics/create-metric-tags/154557097-3a2e07d9-1bb4-4cc5-9d03-c96b61f34296.png)
{% /figure %}

After tagging your metrics, you can filter **Metric Lifts** in Pulse by the tagged collection to focus on the results that matter most.

{% figure %}
![Pulse results showing tagged metric lifts](/images/metrics/create-metric-tags/154556623-79b2b198-b24d-40fa-bcf8-0feccef70f29.png)
{% /figure %}

## Core tag

Every Statsig project includes an auto-created **Core** tag pre-populated with a subset of User Metrics. User Metrics are classic growth metrics (such as MAU, WAU, DAU, L7, and 28-day retention) that Statsig calculates daily from your logged events. The following User Metrics are added to the Core tag by default (you can remove them or replace them with more relevant business metrics):

* DAU/ WAU/ MAU
* New users
* Daily/ Weekly/ Monthly user stickiness

The Core tag serves as a collection of your most important business metrics to monitor with every new feature rollout and experiment.

The Core tag is automatically added to all new feature gates and experiments at the point of creation. In an experiment, the Core tag is added to the Scorecard, under **Secondary Metrics**. In a feature gate, the Core tag is added to the **Monitoring Metrics** section.

## Configuring your core metrics

Because the Core tag receives special treatment, curate the metrics in this tag collection during project setup. Go to **Metrics** → **Metrics Catalog** and add the **Core** tag to any relevant metrics.

To see which metrics already have the **Core** tag applied, filter by the **Core** tag in the Metrics Catalog by tapping the filter icon in the upper right-hand corner, then **Tags**, then selecting the **Core** tag. Remove the Core tag from any unwanted metrics in the filtered list.

{% figure %}
![Core metrics filter view](/images/metrics/create-metric-tags/206882708-399dbb67-098e-463c-aa56-df62fc5c780a.png)
{% /figure %}

## Setting rollout alert thresholds for your core metrics

When rolling out a new feature or experiment, you may want to be notified if the rollout negatively impacts a key business metric. Statsig lets you set Rollout Alerts at the per-metric level. You receive an alert if any running experiment or feature gate regresses the metric beyond the set threshold.

Because Core Metrics are important, configure Rollout Alerts for Core Metrics through the Metrics Catalog. For more on Rollout Alert configuration, refer to [Rollout Alerts](/metrics/rollout-alerts).