---
title: "Changes to Updates a specific purchase order"
method: POST
path: "/PurchaseOrders/{PurchaseOrderID}"
---

# Changes to Updates a specific purchase order

`POST /PurchaseOrders/{PurchaseOrderID}`

> Every recorded change to this endpoint, newest first.

## Timeline

Changed in 3 of 58 revisions.

- **2025-09-15** `ab9dba3c8746` — 2 info
- **2024-09-16** `3aad5a420f76` — 6 info
- **2024-07-29** `98ef773227e5` — 2 info

## Changes

- **2025-09-15** `ab9dba3c8746` — 2 info
  - added the new optional request property `PurchaseOrders/items/Contact/TaxNumberType`
  - added the optional property `PurchaseOrders/items/Contact/TaxNumberType` to the response with the `200` status
- **2024-09-16** `3aad5a420f76` — 6 info
  - added the new optional request property `PurchaseOrders/items/LineItems/items/SalesTaxCodeId`
  - added the new optional request property `PurchaseOrders/items/LineItems/items/TaxBreakdown`
  - added the new optional request property `PurchaseOrders/items/LineItems/items/Taxability`
  - added the optional property `PurchaseOrders/items/LineItems/items/SalesTaxCodeId` to the response with the `200` status
  - added the optional property `PurchaseOrders/items/LineItems/items/TaxBreakdown` to the response with the `200` status
  - added the optional property `PurchaseOrders/items/LineItems/items/Taxability` to the response with the `200` status
- **2024-07-29** `98ef773227e5` — 2 info
  - added the new optional request property `Warnings`
  - added the optional property `Warnings` to the response with the `200` status

---

[Operation](https://skmtc.dev/xeroapi/apis/xero-accounting-api/docs/PurchaseOrders/:PurchaseOrderID/post.md) · [API](https://skmtc.dev/xeroapi/apis/xero-accounting-api.md) · [Page](https://skmtc.dev/xeroapi/apis/xero-accounting-api/changes/PurchaseOrders/:PurchaseOrderID/post)