{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "ExpenseItemization",
  "type": "object",
  "description": "An itemized line within a parent expense, representing a breakdown of the total amount.",
  "properties": {
    "itemizationId": {
      "type": "string",
      "description": "Unique identifier of the itemization"
    },
    "expenseId": {
      "type": "string",
      "description": "The parent expense identifier"
    },
    "transactionDate": {
      "type": "string",
      "description": "The date of the itemized charge"
    },
    "businessPurpose": {
      "type": "string",
      "description": "Purpose of this specific itemization"
    },
    "customData": {
      "type": "array"
    }
  }
}