curl --request POST \
  --url https://api.automationhub.one/api:RIKjHOHm/campaigns \
  --header 'Content-Type: application/json' \
  --header 'X-API-Key: <api-key>' \
  --data '
{
  "idempotency_key": "presupuesto-4812-followup-1",
  "template_name": "seguimiento_presupuesto",
  "template_language": "es_AR",
  "external_ref": "PRES-4812",
  "campaign_name": "Follow-up presupuesto 4812",
  "recipients": [
    {
      "phone": "+5491123456789",
      "params": [
        "Juan",
        "4812"
      ]
    }
  ]
}
'

{
  "campaign_id": "<string>",
  "status": "sent",
  "campaign_name": "<string>",
  "external_ref": "<string>",
  "recipients": {
    "added": 123,
    "duplicates": 123,
    "errors": [
      "<string>"
    ]
  },
  "replayed": true
}