When you send out a text with Switchboard, some messages may not deliver successfully — this is normal! Remember, Switchboard does not charge you for these undelivered messages.
The below table explains the most common error codes. To see error codes for all messages, you can export broadcast results at the bottom of each broadcast page. Feel free to reach out to [email protected] if you have any questions or want information about an error code that isn’t described below.
| Error Code | Error Name | Description |
|---|---|---|
| 4750 | Carrier Rejected Message | The destination carrier has rejected the message but did not provide a specific reason. For AT&T traffic, this could be a prepaid user whose account is out of money or a subscriber that is provisioned to not receive this type of SMS. |
| 9999 | Unknown Error | Carrier reported an unknown failure. Similar to a 4750 error. |
| 5620 | Carrier Application Error | The upstream carrier has reported that they cannot process this message. Try sending again, and if the failure persists update your message. |
| 4700 | Invalid Service Type | The phone number you are trying to reach does not support SMS or MMS. |
| 21614 or 9902 | Timed out waiting for delivery receipt. | Our vendor did not provide the requested delivery receipt. If we receive it from them later, we will update the broadcast results. |
| 30005 | Unknown Destination Handset | The destination number you are trying to reach is unknown and may no longer exist, or the the device you are trying to reach does not have sufficient service. |
| 30006 | Unknown Destination | The destination number is unable to receive this message. Potential reasons could include trying to reach a landline or, in the case of short codes, an unreachable carrier. |
| 30007 | Spam Detected | The carrier has determined that this message is spam related. Reach out to [email protected] if you feel this failure was given in error. |
| 30024 | Provisioning Error | A message was sent to a number that was not fully provisioned or your sending number has not been fully provisioned for sending. |
| 21211 | Invalid Number | The number has an invalid format. |
| 21408 | Sending Permission Denied | The number you are trying to reach is out of range (i.e. out of the country). |