| Connected Account | The connected account to use for the request | Connected Account | Yes | |
| From | The number from which to send the message | Text (Short) | Yes | |
| To | All recipients separated by commas | Text (Long) | Yes | |
| Message | The message to be send | Text (Long) | Yes | |
| Created date and time | The date and time of the creation of the message in RFC3339 format (Y-m-dTH:i:sP) | Datetime | No | |
| Datacoding | Using unicode will limit the maximum number of characters to 70 instead of 160 | Predefined Choice List | No | |
| Gateway | The SMS route that is used to send the message | Number | No | |
| Group IDs | Group IDs separated by commas, If provided recipients can be omitted | Text (Long) | No | |
| Message type | Indicated the message type. 1 is a normal message, 0 is a flash message | Text (Short) | No | |
| Reference | A client reference | Text (Long) | No | |
| Report URL | The status report URL to be used on a per-message basis. Reference is required for a status report webhook to be sent | Link | No | |
| Scheduled date and time | The scheduled date and time of the message in RFC3339 format (Y-m-dTH:i:sP) | Datetime | No | |
| Type | The type of message. Values can be: sms, binary, or flash | Predefined Choice List | No | |
| Type details | A hash with extra information. Is only used when a binary message is sent | Text (Long) | No | |
| Validity | The amount of seconds that the message is valid | Number | No | |