---
title: "Changes to Partially update a purchase order"
method: PATCH
path: "/api/purchase-orders/{purchaseOrderId}"
---

# Changes to Partially update a purchase order

`PATCH /api/purchase-orders/{purchaseOrderId}`

> Every recorded change to this endpoint, newest first.

## Timeline

Changed in 3 of 23 revisions.

- **2026-09-24** `d743ab8b105f` — 1 breaking, 1 info
- **2026-09-11** `c00251431237` — 3 info
- **2026-08-14** `c4b2ba5fc270` — 4 breaking

## Changes

- **2026-09-24** `d743ab8b105f` — 1 breaking, 1 info
  - the `items/value` request property type changed from `string` to no type
  - added the new optional request property `items/from`
- **2026-09-11** `c00251431237` — 3 info
  - added the non-success response with the status `400`
  - added the optional property `jobReferences` to the response with the `200` status (media type: application/json)
  - added the optional property `jobReferences` to the response with the `200` status (media type: application/problem+json)
- **2026-08-14** `c4b2ba5fc270` — 4 breaking
  - the response property `contactId` became nullable for the status `200` (media type: application/json)
  - the response property `contactId` became nullable for the status `200` (media type: application/problem+json)
  - the response property `contactId` became optional for the status `200` (media type: application/json)
  - the response property `contactId` became optional for the status `200` (media type: application/problem+json)

---

[Operation](https://skmtc.dev/fulcrumpro/apis/fulcrum-publicapi/docs/api/purchase-orders/:purchaseOrderId/patch.md) · [API](https://skmtc.dev/fulcrumpro/apis/fulcrum-publicapi.md) · [Page](https://skmtc.dev/fulcrumpro/apis/fulcrum-publicapi/changes/api/purchase-orders/:purchaseOrderId/patch)