# Events

An Event represents a change or an action that occurs in commercetools services.

Events are available for [EventTypes](https://docs.commercetools.com/api/events.md#eventtype) specific to a service.
Common fields are represented by a base type, [Event](https://docs.commercetools.com/api/events.md#event).

Each Event has a `data` field which contains data relating to the specified change or action.

You can access Events by subscribing to them with a [Subscription](https://docs.commercetools.com/api/projects/subscriptions.md).

## Representations

#### Event

See API type definition [BaseEvent](https://docs.commercetools.com/api/events.md?urn=ctp%3Aapi%3Atype%3ABaseEvent).

#### EventType

See API type definition [EventType](https://docs.commercetools.com/api/events.md?urn=ctp%3Aapi%3Atype%3AEventType).

## Checkout Events

Events that represent a change or an action related to [Checkout](https://docs.commercetools.com/checkout).

#### Events

##### Checkout Order Creation Failed

See API type definition [CheckoutOrderCreationFailedEvent](https://docs.commercetools.com/api/events.md?urn=ctp%3Aapi%3Atype%3ACheckoutOrderCreationFailedEvent).

##### Checkout Payment Authorized

See API type definition [CheckoutPaymentAuthorizedEvent](https://docs.commercetools.com/api/events.md?urn=ctp%3Aapi%3Atype%3ACheckoutPaymentAuthorizedEvent).

##### Checkout Payment Authorization Failed

See API type definition [CheckoutPaymentAuthorizationFailedEvent](https://docs.commercetools.com/api/events.md?urn=ctp%3Aapi%3Atype%3ACheckoutPaymentAuthorizationFailedEvent).

##### Checkout Payment Charged

See API type definition [CheckoutPaymentChargedEvent](https://docs.commercetools.com/api/events.md?urn=ctp%3Aapi%3Atype%3ACheckoutPaymentChargedEvent).

##### Checkout Payment Charge Failed

See API type definition [CheckoutPaymentChargeFailedEvent](https://docs.commercetools.com/api/events.md?urn=ctp%3Aapi%3Atype%3ACheckoutPaymentChargeFailedEvent).

##### Checkout Payment Authorization Cancelled

See API type definition [CheckoutPaymentAuthorizationCancelledEvent](https://docs.commercetools.com/api/events.md?urn=ctp%3Aapi%3Atype%3ACheckoutPaymentAuthorizationCancelledEvent).

##### Checkout Payment Cancel Authorization Failed

See API type definition [CheckoutPaymentCancelAuthorizationFailedEvent](https://docs.commercetools.com/api/events.md?urn=ctp%3Aapi%3Atype%3ACheckoutPaymentCancelAuthorizationFailedEvent).

##### Checkout Payment Refunded

See API type definition [CheckoutPaymentRefundedEvent](https://docs.commercetools.com/api/events.md?urn=ctp%3Aapi%3Atype%3ACheckoutPaymentRefundedEvent).

##### Checkout Payment Refund Failed

See API type definition [CheckoutPaymentRefundFailedEvent](https://docs.commercetools.com/api/events.md?urn=ctp%3Aapi%3Atype%3ACheckoutPaymentRefundFailedEvent).

#### Event Data Payload

##### Checkout Message Order Payload Base Data

See API type definition [CheckoutMessageOrderPayloadBaseData](https://docs.commercetools.com/api/events.md?urn=ctp%3Aapi%3Atype%3ACheckoutMessageOrderPayloadBaseData).

##### Checkout Message Payments Payload Base Data

See API type definition [CheckoutMessagePaymentsPayloadBaseData](https://docs.commercetools.com/api/events.md?urn=ctp%3Aapi%3Atype%3ACheckoutMessagePaymentsPayloadBaseData).

## Import API Events

Events that represent a change or an action related to the [Import API](https://docs.commercetools.com/api/import-export/overview.md).

#### Events

##### Import Container Created

See API type definition [ImportContainerCreatedEvent](https://docs.commercetools.com/api/events.md?urn=ctp%3Aapi%3Atype%3AImportContainerCreatedEvent).

##### Import Container Deleted

See API type definition [ImportContainerDeletedEvent](https://docs.commercetools.com/api/events.md?urn=ctp%3Aapi%3Atype%3AImportContainerDeletedEvent).

##### Import Operation Rejected

See API type definition [ImportOperationRejectedEvent](https://docs.commercetools.com/api/events.md?urn=ctp%3Aapi%3Atype%3AImportOperationRejectedEvent).

##### Import Unresolved

See API type definition [ImportUnresolvedEvent](https://docs.commercetools.com/api/events.md?urn=ctp%3Aapi%3Atype%3AImportUnresolvedEvent).

##### Import Validation Failed

See API type definition [ImportValidationFailedEvent](https://docs.commercetools.com/api/events.md?urn=ctp%3Aapi%3Atype%3AImportValidationFailedEvent).

##### Import Wait For Master Variant

See API type definition [ImportWaitForMasterVariantEvent](https://docs.commercetools.com/api/events.md?urn=ctp%3Aapi%3Atype%3AImportWaitForMasterVariantEvent).

#### Event Data

##### Import Container Created Event Data

See API type definition [ImportContainerCreatedEventData](https://docs.commercetools.com/api/events.md?urn=ctp%3Aapi%3Atype%3AImportContainerCreatedEventData).

##### Import Container Deleted Event Data

See API type definition [ImportContainerDeletedEventData](https://docs.commercetools.com/api/events.md?urn=ctp%3Aapi%3Atype%3AImportContainerDeletedEventData).

##### Import Operation Rejected Event Data

See API type definition [ImportOperationRejectedEventData](https://docs.commercetools.com/api/events.md?urn=ctp%3Aapi%3Atype%3AImportOperationRejectedEventData).

##### Import Validation Failed Event Data

See API type definition [ImportValidationFailedEventData](https://docs.commercetools.com/api/events.md?urn=ctp%3Aapi%3Atype%3AImportValidationFailedEventData).

##### Import Unresolved Event Data

See API type definition [ImportUnresolvedEventData](https://docs.commercetools.com/api/events.md?urn=ctp%3Aapi%3Atype%3AImportUnresolvedEventData).

##### Import Wait For Master Variant Event Data

See API type definition [ImportWaitForMasterVariantEventData](https://docs.commercetools.com/api/events.md?urn=ctp%3Aapi%3Atype%3AImportWaitForMasterVariantEventData).

## Related pages

- [Section overview page](https://docs.commercetools.com/api.md)
- [Next page: States](https://docs.commercetools.com/api/projects/states.md)