---
id: "tools/experiments-v1/experiment-performance-alerts"
title: "Experiment Performance Alerts"
description: "Get notified by email when an experiment variant is significantly underperforming compared to the control group, so you can take action before a bad experiment causes lasting revenue impact."
permalink: "/docs/tools/experiments-v1/experiment-performance-alerts"
slug: "experiment-performance-alerts"
version: "current"
original_source: "docs/tools/experiments-v1/experiment-performance-alerts.md"
---

Get notified by email when an experiment variant is significantly underperforming compared to the control group, so you can take action before a bad experiment causes lasting revenue impact.

Performance alerts apply to both **price (A/B) experiments** and **funnel experiments**.

## How can I manage Experiment Performance Alerts?

Performance alerts are **enabled by default** for every project you have access to. You can opt out on a per-project basis:

1. Click on [**Account**](https://app.revenuecat.com/settings/account) from the RevenueCat Dashboard.
2. Open the **Notifications** section and find **Experiment Performance Alerts**.
3. Deselect any Projects you do not want to receive performance alerts for.
4. Click **Update** to save your changes.

:::info Verify your email address
You must first verify your email address with us in order to receive Experiment Performance Alerts.
:::

## When is an alert triggered?

An alert is sent when a treatment variant's revenue is significantly lower than the control group, based on both the absolute and relative revenue difference between the two. This two-condition requirement prevents alerts on experiments with a large percentage drop but negligible absolute impact, and vice versa.

:::info Grace period
No alert is sent during the first 7 days of active experiment run time, even if revenue is down. This avoids noise from early variance before enough data has accumulated.
:::

## FAQs

| Question | Answer |
| -------- | ------ |
| How often are alerts checked? | Performance is evaluated daily. |
| Do I get one email per experiment or one per variant? | One email per underperforming variant. If your experiment has multiple treatment variants and more than one is underperforming, you will receive a separate alert for each. |
| Are alerts sent for stopped experiments? | Yes, for up to 7 calendar days after an experiment is stopped, so you can still be alerted about a recently stopped experiment. |
| Can I re-enable alerts after opting out? | Yes, return to the **Experiment Performance Alerts** section in **Notifications** and re-select the project. |
| I don't have permission to stop the experiment — why am I receiving alerts? | Alerts are sent to all account members with access to view experiment metrics for a project, except for `read_only` collaborators who cannot modify experiments. If you believe you are receiving alerts in error, reach out through [Support](https://app.revenuecat.com/settings/support). |