# Event Subscriptions

Reference for the event subscription endpoints, covering how to create, retrieve, list, update, and delete subscriptions that send you notifications when a resource changes.

Use our Event Subscriptions endpoints to create and manage the events you have subscribed to.

We trigger an event when we make a change to a resource or complete a process, for example, when we change the status of a processing account. When you subscribe to an event, we send you a notification each time we trigger the event.

Integrate with our [Create Event Subscription](/api/create-event-subscription) method to subscribe to an event. When you send a successful request our gateway returns an id for the subscription, which you use to complete follow-on actions:

- [Retrieve Event Subscription](/api/get-event-subscription) - View the details of the event subscription. If you don't have the subscriptionId, use our [List Event Subscriptions](/api/list-event-subscriptions) method.
- [Update Event Subscription](/api/update-event-subscription) - Update the details of the event subscription, including the events that you have subscribed to. You can also [partially update the event subscription](/api/patch-event-subscription).
- [Delete Event Subscription](/api/delete-event-subscription) - Delete the event subscription.

**Note:** When you create an event subscription, we return a unique identifier for the event subscription in the id field. Send this unique identifier in your requests when we require a subscriptionId.