When the SMS message is sent, the system assigns one of the following possible status to an SMS message:

QUEUE: SMS message is queued. Acknowledged by internal delivery process but not yet sent.
DEQUEUED: The SMS message has been removed from the queue and is ready to be published on the mobile operator.
ERROR: An error occurred in the API logic and the message could not be delivered.
If the Error message is the following ´Text exceeds the limit of allowed segments´, it indicates that the number of permissible segments has been surpassed. This occurs when the message exceeds the 160-character limit per segment, therefore the the message cannot be sent. To resolve this issue, ensure that your SMS messages do not exceed 1600 characters to avoid reaching the segment limit.