curl --request GET \
  --url https://api.wizcommerce.com/v1/contract-pricing/{id} \
  --header 'X-API-Key: <api-key>'

{
  "data": {
    "id": "123e4567-e89b-12d3-a456-426614174000",
    "name": "Q1 Enterprise Contract",
    "reference_id": "REF-CONTRACT-2025",
    "contract_status": "active",
    "customer_group_type": "all",
    "customer_segments": [
      "<string>"
    ],
    "product_price_map": [
      {
        "sku_id": "SKU-001",
        "volume_tiers": [
          {
            "start_quantity": 1,
            "end_quantity": 100,
            "price": 10
          }
        ]
      }
    ],
    "schedule_details": {
      "start_date": "2025-01-01T00:00:00Z",
      "end_date": "2035-01-01T00:00:00Z"
    },
    "timezone": "UTC",
    "channel": [],
    "discount_campaign_allowed": false,
    "discount_applicable_on": "contract_pricing",
    "created_at": "2025-01-01T00:00:00Z",
    "updated_at": "2025-01-01T00:00:00Z"
  }
}