eventBusName

The name or ARN of the event bus to receive the event. Only the rules that are associated with this event bus are used to match the event. If you omit this, the default event bus is used.

If you're using a global endpoint with a custom bus, you can enter either the name or Amazon Resource Name (ARN) of the event bus in either the primary or secondary Region here. EventBridge then determines the corresponding event bus in the other Region based on the endpoint referenced by the EndpointId. Specifying the event bus ARN is preferred.