File send

POST

/messages/sms/file

Send via file upload.
The recipients column must have a telephone header.
Set resumeBefore to true to return the required credits without sending the campaign.

Request

Authorization

Query Params

Body Params multipart/form-dataRequired

Responses

🟢200OK

application/json

Body

🟠400Bad Request

🟠401Unauthorized

Request Example

Shell

JavaScript

Java

Swift

curl --location --request POST 'https://api.conexteo.com/messages/sms/file?resumeBefore' \
--form 'shorturl=""' \
--form 'external_id="123456789-client"' \
--form 'scheduleAt=""' \
--form 'content="Hello World"' \
--form 'sender="SENDER"' \
--form 'file=@""'

Response Example

{
    "success": true,
    "message": "message created",
    "message_id": 123456,
    "credits_used": 1
}

Modified at 2026-04-24 09:55:35

Send to contact lists

Messages history