Start Campaign

Transitions the campaign from draft or paused to running. Lemu begins dialing contacts up to the configured max_concurrency.

POST/api/v1/campaign/{campaign_id}/start

Parameters#

Name	Located in	Type	Required	Description
`campaign_id`	path	integer	Yes	—

Responses#

200 — Successful Response

{
  "id": 0,
  "name": "Example Name",
  "workflow_id": 0,
  "workflow_name": "Example Name",
  "state": "string",
  "source_type": "string",
  "source_id": "source_123",
  "total_rows": 0,
  "processed_rows": 0,
  "failed_rows": 0,
  "created_at": "2026-01-15T10:30:00Z",
  "started_at": "2026-01-15T10:30:00Z",
  "completed_at": "2026-01-15T10:30:00Z",
  "retry_config": {
    "enabled": true,
    "max_retries": 0,
    "retry_delay_seconds": 0,
    "retry_on_busy": true,
    "retry_on_no_answer": true,
    "retry_on_voicemail": true
  },
  "max_concurrency": 0,
  "schedule_config": {
    "enabled": true,
    "timezone": "string",
    "slots": [
      {
        "day_of_week": 0,
        "start_time": "string",
        "end_time": "string"
      }
    ]
  },
  "circuit_breaker": {
    "enabled": false,
    "failure_threshold": 0.5,
    "window_seconds": 120,
    "min_calls_in_window": 5
  }
}

404 — Not found

422 — Validation Error

{
  "detail": [
    {
      "loc": [
        "string"
      ],
      "msg": "string",
      "type": "string"
    }
  ]
}