When requesting a PO, use the requestJSON to pass the PO data, and the response will have responseJSON which stores the POs response returned by Xero.

The Purchase Order object has the following parameters.

Learn how to request a purchase order (PO) using JSON and receive a response from Xero with this comprehensive document. Understand the essential parameters of the Purchase Order object, including contact, date, status, line items, tax details, and more. 

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Purchase Order

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Getting Started

Invoice Configuration

Bill Configuration

Purchase Order Configuration

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Transaction Level Fields

Line Item Level Fields

Summary

Button URL Structure

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Support

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API Overview 

Contact

Invoice

Bill

Payment

Online Invoice

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Item

Request

Response

Invoice Flow

Xero Contact Flow

Code Examples

Global API

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ERD / Object Structure

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Field Name	Data Type	Description
Contact	Contact	The ID (Unique Xero ID) for the referenced customer
DateString	String	Date purchase order was issued
DateVariable	String	Date purchase order was issued
DeliveryDate	Date	Date purchase order is due
Status	String	Status of the purchase order
LineAmountTypes	String	Type of Amounts like Tax Exclusive,inclusive and no tax
LineItems	LineItem	Individual line items of a transaction
SubTotal	Decimal	Total of invoice excluding taxes
TotalTax	Decimal	Total tax on purchase order
Total	Decimal	Total of purchase order tax inclusive
CurrencyCode	String	The currency that purchase order has been raised in
CurrencyRate	Decimal	The currency rate for a multicurrency purchase order
PurchaseOrderID	String	Unique identifier for this object and ReadOnly field
PurchaseOrderNumber	String	Unique alpha numeric code identifying purchase order
Reference	String	Additional reference number
BrandingThemeID	String
DeliveryAddress	String
AttentionTo	String
DeliveryInstructions	String
Telephone	String
Salesforce_Account_Id	String	To link Purchase Order with Salesforce Account
Salesforce_Opportunity_Id	String	To link Purchase Order with Salesforce Opportunity

Field Name	Data Type	Description
ItemCode	String	Code of the Product
Description	String	Description of the line item
TaxType	String
AccountCode	String
LineItemID	String
UnitAmount	Decimal
Quantity	Decimal
DiscountRate	Decimal
Tracking	TrackingCategory

Field Name	Data Type	Description
Name	String
Option	String
TrackingCategoryID	String

Purchase Order

Purchase Order

LineItem

TrackingCategory