{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "#/components/schemas/CustomData",
  "title": "CustomData",
  "type": "object",
  "description": "Custom data associated with the conversion event, such as purchase amount, currency, and product information.",
  "properties": {
    "currency": {
      "type": "string",
      "description": "ISO 4217 currency code (e.g., USD, EUR).",
      "pattern": "^[A-Z]{3}$"
    },
    "price": {
      "type": "number",
      "format": "double",
      "description": "The value or price associated with the event."
    },
    "transaction_id": {
      "type": "string",
      "description": "A unique transaction identifier for deduplication."
    },
    "search_string": {
      "type": "string",
      "description": "The search query string for SEARCH events."
    },
    "sign_up_method": {
      "type": "string",
      "description": "The method used for sign-up (e.g., email, google, facebook)."
    },
    "num_items": {
      "type": "integer",
      "description": "Number of items associated with the event."
    },
    "payment_info_available": {
      "type": "integer",
      "description": "Whether payment info is available (1 or 0).",
      "enum": [
        0,
        1
      ]
    },
    "contents": {
      "type": "array",
      "description": "Array of product or content items associated with the event.",
      "items": {
        "$ref": "#/components/schemas/ContentItem"
      }
    }
  }
}