OnceHub uses a reliable network that will always confirm the delivery of your messages. All SMS messages are sent through our private short code, 75732. The short code provides us with a delivery receipt that confirms the status of your SMS message directly from the receiver’s carrier. Learn more about our SMS service
All SMS notifications sent through your account are recorded in the SMS log data. The possible statuses include Delivered, Sent, Rejected and Failed.
- Delivered: The SMS was sent and arrival was confirmed via delivery receipt.
- Sent: SMS was sent but a delivery receipt has not been received yet.
- Rejected: The phone number was found to be invalid prior to sending.
- Failed: The SMS failed to be delivered.
Note about the "Sent" statusIt is common for an SMS to show as “Sent” when it is in the process of being delivered. Once the SMS is delivered and a delivery receipt is received, the status will change to “Delivered."
When an SMS has a "failed" status, a reason will be given whenever possible. Below are the most common reasons for SMS delivery failures and steps that can be taken to resolve the issue.
| Error Message | Meaning | Resolution |
| Illegal Number | Invalid number | Confirm the receiver’s number |
| Absent Subscriber | Number has been disconnected / number not in use | Contact the receiver’s carrier / confirm receiver’s number |
| Call barred by user | Subscriber requested not to receive SMS | The receiver should contact their carrier and ask for SMS to be enabled |
| Portability Error | The number was recently ported from one carrier to another and the database has not been updated yet | Contact us for more information |
| Anti-Spam Rejection | Carrier rejected the message because of the message content / sender ID | Contact us for more information |
| Handset Busy | Handset is busy and not able to receive SMS | Try again later |
| Network Error | Network is busy or there are Network problems | Try again later |
| Invalid Message | Message not supported / rejected by the carrier | Contact us for more information |
| Unroutable | The carrier is not able to route the SMS to the number | Contact us for more information |
| Destination Unreachable | N/A | Confirm receiver’s number / Try again later |
| Subscriber Age Restriction | N/A | N/A |
| Number Blocked by Carrier | N/A | The receiver should contact their carrier and ask for SMS to be enabled |
| Prepaid - Insufficient funds | Receiver does not have sufficient funds / cannot receive SMS notifications on their plan | Try again later |
| General Error | N/A | Contact us for more information |