# Campaign

> The Campaign object.

| Field | Type | Description |
|---|---|---|
| `agent_id` | string (uuid) |  |
| `callbacks` | [CampaignCallbacksObject](/reference/objects/CampaignCallbacksObject) |  |
| `calling_hours` | [CampaignCallingHoursObject](/reference/objects/CampaignCallingHoursObject) |  |
| `contacts` | [CampaignCounts](/reference/objects/CampaignCounts) |  |
| `created_at` | string (date-time) |  |
| `finished_at` | string (date-time) or null |  |
| `id` | string (uuid) |  |
| `livemode` | boolean |  |
| `name` | string |  |
| `object` | `campaign` |  |
| `pacing` | [CampaignPacingObject](/reference/objects/CampaignPacingObject) |  |
| `paused_reason` | string or null | Why it paused itself, when it did. |
| `phone_number_id` | string (uuid) or null |  |
| `project_id` | string (uuid) |  |
| `start_at` | string (date-time) or null | When a draft will start by itself. |
| `started_at` | string (date-time) or null |  |
| `status` | string | `draft` until it starts; `running` while it calls; `paused`, by you or because it could not go on — `paused_reason` says which; `completed` once nobody is left to call; `cancelled` if you stopped it. One of: `draft`, `running`, `paused`, `completed`, `cancelled`. New words may be added. |
| `voicemail` | [CampaignVoicemailObject](/reference/objects/CampaignVoicemailObject) |  |