# Adds an event for triggered billing alerts

## What’s new

Adds a new [billing.alert.triggered](https://docs.stripe.com/api/events/types.md?api-version=2024-09-30.acacia#event_types-billing.alert.triggered) event.

## Impact

You can [listen](https://docs.stripe.com/billing/subscriptions/usage-based/alerts.md#listen-for-webhooks) for the event [billing.alert.triggered](https://docs.stripe.com/api/events/types.md?api-version=2024-09-30.acacia#event_types-billing.alert.triggered) event as part of your integration.

## Changes

#### REST API

| Value                     | Change | Enum                                                                             |
| ------------------------- | ------ | -------------------------------------------------------------------------------- |
| `billing.alert.triggered` | Added  | [Event.type](/api/events/object?api-version=2024-09-30.acacia#event_object-type) |

#### Ruby

This change does not affect the Ruby SDK.

#### Python

| Value                     | Change | Enum                                                                                    |
| ------------------------- | ------ | --------------------------------------------------------------------------------------- |
| `billing.alert.triggered` | Added  | [stripe.Event.type](/api/events/object?api-version=2024-09-30.acacia#event_object-type) |

#### PHP

| Value                     | Change | Enum                                                                             |
| ------------------------- | ------ | -------------------------------------------------------------------------------- |
| `billing.alert.triggered` | Added  | [Event.type](/api/events/object?api-version=2024-09-30.acacia#event_object-type) |

#### Java

This change does not affect the Java SDK.

#### Node.js

| Value                     | Change | Enum                                                                             |
| ------------------------- | ------ | -------------------------------------------------------------------------------- |
| `billing.alert.triggered` | Added  | [Event.type](/api/events/object?api-version=2024-09-30.acacia#event_object-type) |

#### Go

| Value                     | Change | Enum                                                                            |
| ------------------------- | ------ | ------------------------------------------------------------------------------- |
| `billing.alert.triggered` | Added  | [EventType](/api/events/object?api-version=2024-09-30.acacia#event_object-type) |

#### .NET

This change does not affect the .NET SDK.

## Upgrade

#### REST API

1. [View your current API version](https://docs.stripe.com/upgrades.md#view-your-api-version-and-the-latest-available-upgrade-in-workbench) in Workbench.
1. If you use an SDK, upgrade to the corresponding SDK version for this API version.
   - If you don’t use an SDK, update your [API requests](https://docs.stripe.com/api/versioning.md) to include `Stripe-Version: 2024-09-30.acacia`
1. Upgrade the API version used for [webhook endpoints](https://docs.stripe.com/webhooks/versioning.md).
1. [Test your integration](https://docs.stripe.com/testing.md) against the new version.
1. If you use Connect, [test your Connect integration](https://docs.stripe.com/connect/testing.md).
1. In Workbench, [perform the upgrade](https://docs.stripe.com/upgrades.md#perform-the-upgrade). You can [roll back the version](https://docs.stripe.com/upgrades.md#roll-back-your-api-version) for 72 hours.

Learn more about [Stripe API upgrades](https://docs.stripe.com/upgrades.md).

#### Ruby

1. [View your current API version](https://docs.stripe.com/upgrades.md#view-your-api-version-and-the-latest-available-upgrade-in-workbench) in Workbench.
1. Upgrade your Ruby SDK to [v13.0.0](https://github.com/stripe/stripe-ruby/releases/tag/v13.0.0)
1. Upgrade the API version used for [webhook endpoints](https://docs.stripe.com/webhooks/versioning.md).
1. [Test your integration](https://docs.stripe.com/testing.md) against the new version.
1. If you use Connect, [test your Connect integration](https://docs.stripe.com/connect/testing.md).
1. In Workbench, [perform the upgrade](https://docs.stripe.com/upgrades.md#perform-the-upgrade). You can [roll back the version](https://docs.stripe.com/upgrades.md#roll-back-your-api-version) for 72 hours.

Learn more about [Stripe API upgrades](https://docs.stripe.com/upgrades.md).

#### Python

1. [View your current API version](https://docs.stripe.com/upgrades.md#view-your-api-version-and-the-latest-available-upgrade-in-workbench) in Workbench.
1. Upgrade your Python SDK to [v11.0.0](https://github.com/stripe/stripe-python/releases/tag/v11.0.0)
1. Upgrade the API version used for [webhook endpoints](https://docs.stripe.com/webhooks/versioning.md).
1. [Test your integration](https://docs.stripe.com/testing.md) against the new version.
1. If you use Connect, [test your Connect integration](https://docs.stripe.com/connect/testing.md).
1. In Workbench, [perform the upgrade](https://docs.stripe.com/upgrades.md#perform-the-upgrade). You can [roll back the version](https://docs.stripe.com/upgrades.md#roll-back-your-api-version) for 72 hours.

Learn more about [Stripe API upgrades](https://docs.stripe.com/upgrades.md).

#### PHP

1. [View your current API version](https://docs.stripe.com/upgrades.md#view-your-api-version-and-the-latest-available-upgrade-in-workbench) in Workbench.
1. Upgrade your PHP SDK to [v16.0.0](https://github.com/stripe/stripe-php/releases/tag/v16.0.0)
1. Upgrade the API version used for [webhook endpoints](https://docs.stripe.com/webhooks/versioning.md).
1. [Test your integration](https://docs.stripe.com/testing.md) against the new version.
1. If you use Connect, [test your Connect integration](https://docs.stripe.com/connect/testing.md).
1. In Workbench, [perform the upgrade](https://docs.stripe.com/upgrades.md#perform-the-upgrade). You can [roll back the version](https://docs.stripe.com/upgrades.md#roll-back-your-api-version) for 72 hours.

Learn more about [Stripe API upgrades](https://docs.stripe.com/upgrades.md).

#### Java

1. [View your current API version](https://docs.stripe.com/upgrades.md#view-your-api-version-and-the-latest-available-upgrade-in-workbench) in Workbench.
1. Upgrade your Java SDK to [v27.0.0](https://github.com/stripe/stripe-java/releases/tag/v27.0.0)
1. Upgrade the API version used for [webhook endpoints](https://docs.stripe.com/webhooks/versioning.md).
1. [Test your integration](https://docs.stripe.com/testing.md) against the new version.
1. If you use Connect, [test your Connect integration](https://docs.stripe.com/connect/testing.md).
1. In Workbench, [perform the upgrade](https://docs.stripe.com/upgrades.md#perform-the-upgrade). You can [roll back the version](https://docs.stripe.com/upgrades.md#roll-back-your-api-version) for 72 hours.

Learn more about [Stripe API upgrades](https://docs.stripe.com/upgrades.md).

#### Node.js

1. [View your current API version](https://docs.stripe.com/upgrades.md#view-your-api-version-and-the-latest-available-upgrade-in-workbench) in Workbench.
1. Upgrade your Node SDK to [v17.0.0](https://github.com/stripe/stripe-node/releases/tag/v17.0.0)
1. Upgrade the API version used for [webhook endpoints](https://docs.stripe.com/webhooks/versioning.md).
1. [Test your integration](https://docs.stripe.com/testing.md) against the new version.
1. If you use Connect, [test your Connect integration](https://docs.stripe.com/connect/testing.md).
1. In Workbench, [perform the upgrade](https://docs.stripe.com/upgrades.md#perform-the-upgrade). You can [roll back the version](https://docs.stripe.com/upgrades.md#roll-back-your-api-version) for 72 hours.

Learn more about [Stripe API upgrades](https://docs.stripe.com/upgrades.md).

#### Go

1. [View your current API version](https://docs.stripe.com/upgrades.md#view-your-api-version-and-the-latest-available-upgrade-in-workbench) in Workbench.
1. Upgrade your Go SDK to [v80.0.0](https://github.com/stripe/stripe-go/releases/tag/v80.0.0)
1. Upgrade the API version used for [webhook endpoints](https://docs.stripe.com/webhooks/versioning.md).
1. [Test your integration](https://docs.stripe.com/testing.md) against the new version.
1. If you use Connect, [test your Connect integration](https://docs.stripe.com/connect/testing.md).
1. In Workbench, [perform the upgrade](https://docs.stripe.com/upgrades.md#perform-the-upgrade). You can [roll back the version](https://docs.stripe.com/upgrades.md#roll-back-your-api-version) for 72 hours.

Learn more about [Stripe API upgrades](https://docs.stripe.com/upgrades.md).

#### .NET

1. [View your current API version](https://docs.stripe.com/upgrades.md#view-your-api-version-and-the-latest-available-upgrade-in-workbench) in Workbench.
1. Upgrade your .NET SDK to [v46.0.0](https://github.com/stripe/stripe-dotnet/releases/tag/v46.0.0)
1. Upgrade the API version used for [webhook endpoints](https://docs.stripe.com/webhooks/versioning.md).
1. [Test your integration](https://docs.stripe.com/testing.md) against the new version.
1. If you use Connect, [test your Connect integration](https://docs.stripe.com/connect/testing.md).
1. In Workbench, [perform the upgrade](https://docs.stripe.com/upgrades.md#perform-the-upgrade). You can [roll back the version](https://docs.stripe.com/upgrades.md#roll-back-your-api-version) for 72 hours.

Learn more about [Stripe API upgrades](https://docs.stripe.com/upgrades.md).

## Related changes

- [Adds contextual filters to billing alerts](https://docs.stripe.com/changelog/acacia/2024-09-30/billing-alerts-contextualizing-filters.md)
- [Adds an Alerts API for usage-based billing](https://docs.stripe.com/changelog/acacia/2024-09-30/billing-alerts-api.md)
- [Adds support for listening to triggered billing alerts](https://docs.stripe.com/changelog/acacia/2024-09-30/billing-alert-webhook-listener.md)
- [Adds billing alert resources and endpoints](https://docs.stripe.com/changelog/acacia/2024-09-30/adds-billing-alert-resources-endpoints.md)
- [Adds support for subscriptions and subscription items to billing alerts](https://docs.stripe.com/changelog/acacia/2024-09-30/billing-alerts-subscription-items-subscriptions.md)
- [Adds Meter Event v2 API endpoints](https://docs.stripe.com/changelog/acacia/2024-09-30/usage-based-billing-v2-meter-events-api.md)