RCS Failure error messagaes
| Error Type | Reason |
|---|---|
| Invalid Template | User is not in a conversation, and the provided message template is not approved. |
| Opted Out | opted_out |
| Curfew Hours | curfew_hrs |
| Message Limit | Monthly message limit exceeded. |
| RCS Disabled | Number is RCS disabled. |
| Internal Server Error | Specific internal server error. |
| 4xx MAAP Errors | MAAP-specific error. |