{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "#/components/schemas/PurchaseOrderLineItem",
  "title": "PurchaseOrderLineItem",
  "type": "object",
  "description": "A line item within a purchase order representing a specific good or service being procured",
  "required": [
    "numberOnPO",
    "description",
    "quantity",
    "unitPrice",
    "unitOfMeasure"
  ],
  "properties": {
    "numberOnPO": {
      "type": "string",
      "description": "Line item number within the purchase order. Unique within the order.",
      "example": "example_value"
    },
    "description": {
      "type": "string",
      "description": "Description of the item or service being purchased",
      "example": "A sample description."
    },
    "quantity": {
      "type": "number",
      "format": "double",
      "description": "Quantity to purchase",
      "minimum": 0,
      "example": 42.5
    },
    "unitPrice": {
      "$ref": "#/components/schemas/Money"
    },
    "unitOfMeasure": {
      "$ref": "#/components/schemas/UnitOfMeasure"
    },
    "netAmount": {
      "$ref": "#/components/schemas/Money"
    },
    "commodityCode": {
      "$ref": "#/components/schemas/CommodityCode"
    },
    "buyerPartNumber": {
      "type": "string",
      "description": "Buyer-assigned part or material number",
      "example": "example_value"
    },
    "supplierPartNumber": {
      "type": "string",
      "description": "Supplier-assigned part or catalog number",
      "example": "example_value"
    },
    "manufacturerPartId": {
      "type": "string",
      "description": "Manufacturer part identifier",
      "example": "500123"
    },
    "manufacturerName": {
      "type": "string",
      "description": "Name of the manufacturer",
      "example": "example_value"
    },
    "itemCategory": {
      "type": "string",
      "description": "Item category code distinguishing material, service, or other item types",
      "example": "example_value"
    },
    "accountCategory": {
      "type": "string",
      "description": "Account assignment category for the line item expenditure",
      "example": "example_value"
    },
    "needByDate": {
      "type": "string",
      "format": "date",
      "description": "Requested delivery date for the line item (ISO 8601 YYYY-MM-DD)",
      "example": "2026-01-15"
    },
    "shipTo": {
      "$ref": "#/components/schemas/Address"
    },
    "accountings": {
      "type": "array",
      "description": "Split accounting assignments for distributing costs across multiple cost objects",
      "items": {
        "$ref": "#/components/schemas/AccountingInfo"
      },
      "example": []
    },
    "receivingType": {
      "type": "integer",
      "description": "Receiving type value indicating how receipts should be processed for this line item",
      "example": 10
    },
    "taxCode": {
      "type": "string",
      "description": "Tax code per evaluated receipt settlement agreements",
      "example": "example_value"
    },
    "taxDetail": {
      "$ref": "#/components/schemas/TaxDetail"
    },
    "itemOnRequisition": {
      "type": "string",
      "description": "Line number of the corresponding item in the originating requisition",
      "example": "example_value"
    },
    "serviceStartDate": {
      "type": "string",
      "format": "date",
      "description": "Service period start date (for service line items)",
      "example": "2026-01-15"
    },
    "serviceEndDate": {
      "type": "string",
      "format": "date",
      "description": "Service period end date (for service line items)",
      "example": "2026-01-15"
    },
    "comments": {
      "type": "string",
      "description": "Additional comments or notes on the line item",
      "example": "example_value"
    }
  }
}