This document details the postback notification codes for MMS MT and MMS MO notifications.
| Code | Status | Description |
|---|---|---|
N101 | Sent | Notification that MMS was sent/processing started. |
N102 | Delivered | Notification that MMS delivery status was updated or delivered. Carrier delivery receipts may not be available for all carriers. |
N103 | Expired | Notification that MMS expired. |
E101 | Failed | Sending failure. Impossible to send MMS. |
E102 | Rejected / Unrecognised | MMS delivery was not successful or destination/content was rejected/unrecognized. |
N003 | Transcoding successful | Saved MMS transcoding completed and template is available. |
E002 | Transcoding failed | Encoding of MMS audio failed for savemms. |
E003 | Transcoding failed | Encoding of MMS video failed for savemms. |
E004 | Transcoding failed | Encoding of MMS image failed for savemms. |
N013 | Transcoding successful and sending triggered | Transcoding completed and send processing was triggered. |
E011 | Content validation failed | Content validation failed. |
E012 | Transcoding failed | Encoding of MMS audio failed for sendmms; sending not triggered. |
E013 | Transcoding failed | Encoding of MMS video failed for sendmms; sending not triggered. |
E202 | Fallback SMS delivery failure | MMS as SMS delivery was not successful. |
E999 | Queue processing error | Post message sending queue processing error. |
N202 | Delivered as SMS | Notification that MMS was delivered as fallback SMS. |
| Code | Status | Description |
|---|---|---|
N401 | MMS MO received | Inbound MMS received successfully. |
| Field | Description |
|---|---|
origin | MMS_MT. |
code | Postback notification code. |
sent-as | MMS if sent/delivered as MMS; SMS if delivered as fallback SMS. |
status | Transaction status such as Sent, Delivered, Failed, Rejected, or Expired. |
status-details | Detailed status text. |
to | Destination phone number with country code. |
from | Sender number. |
timestamp | Timestamp for the MMS MT transaction. |
tracking-id | Tracking ID returned in the API response. |
client-reference | Customer transaction ID passed in the request. |
mms-id | MMS template ID when applicable. |
handset | Handset profile returned inside delivery receipt when provided. |
content-type | Content type when applicable. |
content-name | Content file URL or object name when applicable. |
error-info | Error detail for failure scenarios. |
{
"origin": "MMS_MT",
"code": "N101",
"sent-as": "MMS",
"status": "Sent",
"status-details": "Message Sent",
"to": "17745550001",
"from": "18885551234",
"timestamp": "2026-04-24T18:30:00Z",
"tracking-id": "abc123xyz",
"client-reference": "send-001"
}{
"origin": "MMS_MT",
"code": "N102",
"sent-as": "MMS",
"status": "Delivered",
"status-details": "Message Delivered",
"to": "17745550001",
"from": "18885551234",
"timestamp": "2026-04-24T18:31:10Z",
"tracking-id": "abc123xyz",
"client-reference": "send-001",
"handset": "Apple iPhone"
}{
"origin": "MMS_MT",
"code": "E102",
"sent-as": "MMS",
"status": "Rejected",
"status-details": "Message Rejected",
"to": "17745550001",
"from": "18885551234",
"timestamp": "2026-04-24T18:32:00Z",
"tracking-id": "abc123xyz",
"client-reference": "send-001",
"error-info": "Delivery was not successful."
}{
"origin": "MMS_MT",
"code": "N003",
"status": "Transcoding successful",
"status-details": "MMS template is available for sending.",
"mms-id": "123456",
"tracking-id": "template-build-001",
"client-reference": "template-build-001",
"timestamp": "2026-04-24T18:33:00Z"
}