curl --request GET \
  --url https://api.agentic.scope3.com/api/v2/buyer/campaigns/{campaignId} \
  --header 'Authorization: Bearer <token>'

{
  "campaign": {
    "campaignId": "cmp_987654321",
    "advertiserId": "12345",
    "name": "Summer 2025 Campaign",
    "status": "DRAFT",
    "optimizationApplyMode": "AUTO",
    "createdAt": "2025-01-15T10:30:00Z",
    "updatedAt": "2025-01-20T14:45:00Z",
    "brief": "<string>",
    "flightDates": {
      "startDate": "2025-01-15T00:00:00Z",
      "endDate": "2025-03-31T23:59:59Z"
    },
    "budget": {
      "total": 1,
      "currency": "USD",
      "dailyCap": 1,
      "pacing": "EVEN"
    },
    "constraints": {
      "channels": [
        "<string>"
      ],
      "countries": [
        "<string>"
      ]
    },
    "performanceConfig": {
      "optimizationGoals": [
        {
          "kind": "event",
          "eventSources": [
            {
              "eventSourceId": "website_pixel",
              "eventType": "page_view",
              "customEventName": "<string>",
              "valueField": "value",
              "valueFactor": 1
            }
          ],
          "target": {
            "kind": "cost_per",
            "value": 25
          },
          "attributionWindow": {
            "postClick": {
              "interval": 7,
              "unit": "days"
            },
            "postView": {
              "interval": 1,
              "unit": "days"
            }
          },
          "priority": 1
        }
      ]
    },
    "catalogId": 42,
    "discoveryId": "session_abc123",
    "productCount": 15,
    "products": [
      {
        "productId": "prod_123"
      }
    ],
    "audiences": [
      {
        "audienceId": "aud_123",
        "name": "Tech Enthusiasts 25-34",
        "status": "READY",
        "type": "TARGET",
        "enabledAt": "2025-03-01T12:00:00Z"
      }
    ],
    "mediaBuys": [
      {
        "mediaBuyId": "<string>",
        "name": "<string>",
        "status": "<string>",
        "createdAt": "2023-11-07T05:31:56Z",
        "updatedAt": "2023-11-07T05:31:56Z",
        "products": [
          {
            "productId": "<string>",
            "salesAgentName": "<string>",
            "budget": 123,
            "budgetCurrency": "<string>"
          }
        ],
        "packages": [
          {
            "packageId": "<string>",
            "status": "<string>",
            "productIds": [
              "<string>"
            ],
            "budget": 123,
            "budgetCurrency": "<string>",
            "pacing": "<string>",
            "bidPrice": 123,
            "delivery": {
              "impressions": 123,
              "spend": 123,
              "clicks": 123
            }
          }
        ]
      }
    ]
  }
}