---
title: "Retrieves registration numbers that already exist in onboarding registry"
method: POST
path: "/v1.0/organisation/account-onboarding/registration-numbers"
tags: ["Organisation account onboarding registries"]
---

# Retrieves registration numbers that already exist in onboarding registry

`POST /v1.0/organisation/account-onboarding/registration-numbers`

## Request

- Base URL: `http://localhost:8080/api`
- URL: `http://localhost:8080/api/v1.0/organisation/account-onboarding/registration-numbers`
- Auth: HTTP bearer

## Request body

- OnboardingRegistrationNumbersDTO
  - `registrationNumbers` string[], required

## Response `200`

OK

- OnboardingRegistrationNumbersDTO
  - `registrationNumbers` string[], required

## Other responses

- `403`: Forbidden
- `500`: Internal Server Error

## Changes

- **2025-08-22** `bf068acab677`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/beis/apis/esos-api-documentation/changes/v1.0/organisation/account-onboarding/registration-numbers/post.md)

---

[API](https://skmtc.dev/beis/apis/esos-api-documentation.md) - [All operations](https://skmtc.dev/beis/apis/esos-api-documentation/llms.txt) - [OpenAPI document](https://skmtc.dev/beis/apis/esos-api-documentation/revisions/aa4310e86ddd?raw)