---
title: "POST /api/cascade-tracing/orders/sales/check-sales-order-numbers"
method: POST
path: "/api/cascade-tracing/orders/sales/check-sales-order-numbers"
tags: ["Order Tracing - Sales Orders"]
---

# POST /api/cascade-tracing/orders/sales/check-sales-order-numbers

`POST /api/cascade-tracing/orders/sales/check-sales-order-numbers`

## Request

- Base URL: `https://api.retraced.com` (the document declares no server; this is the origin it was published from)
- URL: `https://api.retraced.com/api/cascade-tracing/orders/sales/check-sales-order-numbers`
- Auth: none declared

Answers which of the given order numbers the caller's company's live sales orders already use — each once, in the order asked. Used by the sales-order imports to flag duplicates before creating anything.

## Request body

- string[]

## Response `200`

Default Response

- object
  - `metadata` object, required
    - `success` boolean, required: True when the request succeeded.
  - `data` string[], required

## Other responses

- `400`: Default Response
- `401`: Default Response
- `403`: Default Response

## Changes

> 108 revisions in range; 2 not diffed.

- **2026-10-09** `ddfec192e804`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/retraced/apis/api-reference/changes/api/cascade-tracing/orders/sales/check-sales-order-numbers/post.md)

---

[API](https://skmtc.dev/retraced/apis/api-reference.md) - [All operations](https://skmtc.dev/retraced/apis/api-reference/llms.txt) - [OpenAPI document](https://skmtc.dev/retraced/apis/api-reference/revisions/83309c4abd20?raw)