{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "#/components/schemas/ExpenseDetail",
  "title": "ExpenseDetail",
  "type": "object",
  "description": "The full representation of an expense entry",
  "required": [
    "expenseId"
  ],
  "properties": {
    "expenseId": {
      "type": "string",
      "description": "Unique identifier of the expense",
      "example": "500123"
    },
    "transactionDate": {
      "type": "string",
      "format": "date",
      "description": "The date the transaction occurred",
      "example": "2026-01-15"
    },
    "transactionAmount": {
      "$ref": "#/components/schemas/Amount"
    },
    "postedAmount": {
      "$ref": "#/components/schemas/Amount"
    },
    "approvedAmount": {
      "$ref": "#/components/schemas/Amount"
    },
    "approverAdjustedAmount": {
      "$ref": "#/components/schemas/Amount"
    },
    "businessPurpose": {
      "type": "string",
      "description": "Business justification, maximum 64 characters",
      "maxLength": 64,
      "example": "example_value"
    },
    "expenseType": {
      "$ref": "#/components/schemas/ExpenseType"
    },
    "paymentType": {
      "$ref": "#/components/schemas/PaymentType"
    },
    "location": {
      "$ref": "#/components/schemas/Location"
    },
    "vendor": {
      "$ref": "#/components/schemas/Vendor"
    },
    "exchangeRate": {
      "$ref": "#/components/schemas/ExchangeRate"
    },
    "allocationState": {
      "type": "string",
      "description": "The allocation status of this expense",
      "enum": [
        "FULLY_ALLOCATED",
        "NOT_ALLOCATED",
        "PARTIALLY_ALLOCATED"
      ],
      "example": "FULLY_ALLOCATED"
    },
    "isPersonalExpense": {
      "type": "boolean",
      "description": "Whether this is a non-reimbursable personal expense",
      "example": true
    },
    "isExpenseRejected": {
      "type": "boolean",
      "description": "Whether the expense has been rejected by an approver",
      "example": true
    },
    "isPaperReceiptReceived": {
      "type": "boolean",
      "description": "Whether a physical receipt has been received",
      "example": true
    },
    "hasExceptions": {
      "type": "boolean",
      "description": "Whether the expense has policy exceptions",
      "example": true
    },
    "expenseTaxSummary": {
      "$ref": "#/components/schemas/ExpenseTaxSummary"
    },
    "mileage": {
      "$ref": "#/components/schemas/Mileage"
    },
    "travel": {
      "$ref": "#/components/schemas/Travel"
    },
    "travelAllowance": {
      "$ref": "#/components/schemas/TravelAllowance"
    },
    "invoiceId": {
      "type": "string",
      "description": "Reference to a supplier invoice",
      "example": "500123"
    },
    "customData": {
      "type": "array",
      "items": {
        "$ref": "#/components/schemas/CustomData"
      },
      "example": []
    },
    "lastModifiedDate": {
      "type": "string",
      "format": "date-time",
      "description": "When the expense was last modified (ISO 8601)",
      "example": "2026-01-15T10:30:00Z"
    },
    "links": {
      "type": "array",
      "description": "HATEOAS navigation links",
      "items": {
        "$ref": "#/components/schemas/Link"
      },
      "example": []
    }
  }
}