---
title: Model: CampaignUpdate
slug: feature-experimentation/api/model-campaignupdate
docTags: 
createdAt: 2026-10-01T19:58:02.336Z
---

### Code examples

```json
{
  "changes": [
    {
      "async": false,
      "dependencies": [
        ""
      ],
      "id": "",
      "name": "",
      "selector": "",
      "src": "",
      "type": "",
      "value": ""
    }
  ],
  "description": "",
  "experiment_priorities": [
    [
      ""
    ]
  ],
  "for_journey": false,
  "holdback": 0,
  "journey_id": "",
  "metrics": [
    {
      "aggregator": "",
      "display_title": "",
      "event_id": "",
      "event_properties": {
        "filter": {
          "combine_operator": "",
          "conditions": [
            {
              "name": "",
              "operator": "",
              "type": "",
              "value": ""
            }
          ]
        }
      },
      "field": "",
      "metrics": [
        {
          "aggregator": "unique",
          "event_id": "",
          "event_type": "",
          "field": "",
          "scope": "visitor"
        }
      ],
      "scope": "",
      "time_window": "",
      "winning_direction": ""
    }
  ],
  "name": "",
  "page_ids": [
    0
  ],
  "url_targeting": {
    "activation_code": "",
    "activation_type": "",
    "conditions": "",
    "edit_url": "",
    "key": "",
    "page_id": ""
  }
}
```