---
title: "Inventory - Upsert"
method: PUT
path: "/inventory/upsert"
tags: ["inventory"]
---

# Inventory - Upsert

`PUT /inventory/upsert`

Create or update an inventory record for an item at a specific warehouse.

## Request body

- object
  - `location_name` string, required — Location name to upsert inventory at
  - `item_id` string, required — Item ID
  - `on_hand` number, required — On-hand quantity to set
  - `alert` number — Low-stock alert threshold
  - `notes` string — Notes for the inventory change

## Response `200`

Inventory upserted

- object
  - `success` boolean, required — Whether the operation succeeded

## Other responses

- `400` — Bad request
- `401` — Unauthorized
- `403` — Forbidden. Insufficient permissions.
- `429` — Too many requests. Rate limit exceeded.
- `500` — Internal server error.

## Changes

> 13 revisions in range; 1 could not be searched.

- **2026-03-02** `fa53dd949b8e` — 3 breaking, 9 info
  - the request property `item_id` became required
  - the request property `location_name` became required
  - the request property `on_hand` became required
  - api operation id `put_inventory_upsert` was added
  - …8 more
- **2024-04-22** `08cd9cfa14dd` — 1 breaking, 5 warning, 2 info
  - added required request body
  - deleted the `query` request parameter `alert`
  - deleted the `query` request parameter `item_id`
  - deleted the `query` request parameter `location_name`
  - …4 more
- **2024-04-19** `46ceda528000` — 2 breaking, 11 info
  - removed the request body
  - removed the media type `application/json` for the response with the status `200`
  - api operation id `put_inventory_upsert` removed and replaced with ``
  - added the new optional `query` request parameter `alert`
  - …9 more

[Change history](https://skmtc.dev/skulabs/apis/skulabs-api/changes/inventory/upsert/put.md)

---

[API](https://skmtc.dev/skulabs/apis/skulabs-api.md) · [All operations](https://skmtc.dev/skulabs/apis/skulabs-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/skulabs/skulabs-api/revisions/4b5ec0ed78a6/schema)