Send an SMS message

Sends an SMS message to a lead. Only the lead ID and message are required — the recipient phone, sender phone, and SMS provider are automatically resolved from the lead and campaign configuration. The recipient defaults to the lead phone on file. The sender is resolved from the campaign assigned phone number, then the SMS agent phone, then the first SMS-capable number. The provider follows the campaign-level override, then the tenant default, then Vonage. If an interactionId is provided, the message is appended to an existing conversation. Otherwise, the system finds or creates a conversation automatically.

package mainimport (  "fmt"  "net/http"  "io/ioutil"  "strings")func main() {  url := "https://api.leadsail.app/api/v1/sms/send"  body := strings.NewReader(`{    "leadId": "lead_abc123",    "message": "Hi John, just following up on your inquiry."  }`)  req, _ := http.NewRequest("POST", url, body)  req.Header.Add("Content-Type", "application/json")  res, _ := http.DefaultClient.Do(req)  defer res.Body.Close()  body, _ := ioutil.ReadAll(res.Body)  fmt.Println(res)  fmt.Println(string(body))}

{
  "success": true,
  "data": {
    "messageId": "msg_abc123",
    "status": "sent",
    "interactionId": "int_abc123"
  }
}

{
  "success": false,
  "error": {
    "code": "VALIDATION_ERROR",
    "message": "Invalid input data",
    "details": [
      "string"
    ]
  }
}

{
  "success": false,
  "error": {
    "code": "UNAUTHORIZED",
    "message": "Authentication required"
  }
}

{
  "success": false,
  "error": {
    "code": "NOT_FOUND",
    "message": "Resource not found"
  }
}