| 1000 | Success | Successfully parsed and validated request. |
| 2000 | Client error | Invalid IP Address or Protocol |
| 2002 | Address Error | Invalid Address |
| 2004 | Multimedia refused | Carrier refuses content |
| 2007 | Unable to parse request | Message format corrupt |
| 2550 | Account disabled | Your account is no longer provisioned for MMS |
| 2551 | Account not Provisioned for MM7 | Your account is not provisioned for MM7 API |
| 2560 | Content length exceeded maximum supported request size | Reduce the size of the content you are sending. |
| 2561 | Invalid sender identification | Sender identification invalid or missing. |
| 2562 | Invalid VASID | The VASID is your ServiceID |
| 2563 | Invalid source address | The Shortcode may be incorrect or not provisioned |
| 2564 | Invalid VASPID | The VASPID is your API Key |
| 2565 | Message rejected, reply charging not supported | Message rejected, reply charging not supported |
| 2566 | Invalid carrier | Invalid carrier ID. |
| 2567 | Missing carrier ID | Carrier ID is required to be passed |
| 2568 | Unable to authenticate | Ensure the HTTP username and password you have specified are correct and formatted properly within the Authorization header. |
| 2569 | Carrier Lookup Service is down. Please retry. | The carrier lookup server is not responding. Please retry again. |
| 2571 | DisplayOnly Attribute Error | displayOnly=true cannot be set for all Numbers in the request. |
| 2572 | DisplayOnly Attribute Error | displayOnly=false can be set only once in the request. |
| 2500 | Missing or Invalid HTTP header Content-Length or Content-Type | Ensure the HTTP Content-Length and Content Type header are included and valid. |
| 2502 | Missing destination address | Ensure the recipient is specified correctly for the MM7 version that's used. |
| 2503 | Multiple destination addresses not supported | Multiple recipients not supported. Instead, create multiple messages |
| 2504 | Missing source address | Ensure source address is specified correctly for the MM7 version that's used |
| 2505 | Missing or unsupported MM7 Version | Ensure specified MM7 version is on the list of supported versions, and is in the format x.y.z |
| 2506 | Missing XML element - Content | Ensure the Content element is included in the SubmitRequest. |
| 2507 | Unsupported namespace | Ensure that all the namespaces specified are on the list of supported namespaces. |
| 2510 | Missing or Invalid SOAP header | Ensure the SOAP envelope contains a SOAP header with only the TransactionID element |
| 2511 | Missing or Invalid SOAP body | Ensure the SOAP envelope contains a SOAP body with the SubmitReq |
| 2512 | Unsupported operation | SubmitReq is the only supported operation |
| 2513 | Unable to parse attachment | Ensure your attachment is specified, and encoded properly |
| 2514 | Invalid SOAP attachment header Content-Type | Ensure the Content-Type headers of all the attachments are formatted properly |
| 2515 | Invalid SOAP body part Content-Type | Ensure the Content-Type header of the SOAP body part, aka the SOAP envelope part, is formatted properly |
| 2570 | Carrier Not Provisioned | This carrier is not provisioned in the system. |
| 3000 | System error | Internal system/service error. |
| 3001 | Number blacklisted | Phone number is blacklisted for receiving messages don't retry |
| 3002 | Charged party not supported | Charged Party not supported |
| 3003 | Multimedia download failed | Using URLs in the MM7 the fetch of content failed or took too long |
| 3510 | Throughput exceeded | Throughput exceeded please retry later |
| 3520 | Provisioning issue | Provisioning problem, please contact your account manager |
| 3500 | Timeout | Carrier gateway timeout |
| 4000 | General service error | Carrier rejects the message due to a general service error |
| 4002 | Unsuported MM7 version | The carrier doesn't support this MM7 version |
| 4003 | Unsupported operation | Carrier rejects the message due to unsupported operation or format |
| 4004 | Validation error | Validation error |
| 4006 | Service unavailable | Carrier capacity reached. Retry later |
| 4007 | Service denied | Carrier denies service for the recipient address |