GET /messaging/v1/sms/messages/{messageKey}

Gets the send status for a message. Because this route is rate-limited, use it for infrequent verification of a messageKey. To collect send status at scale, subscribe to transactional send events using the Event Notification Service.

Name	Type		Description
messageKey	string	Required	Unique identifier to track message send status. You must provide it in singleton requests using the recipient attribute. Can be up to 100 characters, and there are no restricted characters. To provide message key in batch requests, use the recipients array attribute. If you don’t provide the message key for recipients, it’s generated in the response.

Status	Name	Type	Description
200			Request is accepted. Review example response.
	requestId	string	The unique identifier of this request.
	eventCategoryType	string	TransactionalSendEvents event type. SMSSent indicates that the SMS was sent to the SMS provider. SMSNotSent indicates that the SMS was not sent and includes the reason. SMSQueued indicates that the SMS has not yet been processed for sending.
	timestamp	string	Time the event occured in Central Standard Time (no daylight savings)
	compositeId	string	Marketing Cloud-specific processing identifier that can be referenced for support.
	messageKey	string	Unique identifier to track message send status.
	contactKey	string	Unique identifier for a subscriber in Marketing Cloud.
	to	string	Channel address of the recipient. For SMS, it’s the recipient's mobile number.

The message is sent to the outbound SMS service for delivery.

The message is queued for processing and assigned a sent or notSent status after processing. The message remains in SMSQueued status when the definitionKey is inactive.

The message isn’t sent because of a processing error described in the info object.

Response	Reason
200 OK	Success. Review example responses.
400 Bad Request	Invalid request
401 Unauthorized	Failed to pass authorization.
500 Server Error	Internal error