# 2026-03-10: Customer Service - SSO customer authentication based on token exchange

## Overview

The Customer Service exposes a new endpoint that provides the possibility to authenticate customers using token exchange approach. It allows you to exchange an external access token from a chosen identity provider for an Emporix customer access token.

## New endpoints

| Endpoint                                                                                                                                                                                                                                                    | Description                                                 |
| ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------- |
| [Exchanging an external access token for an Emporix customer token](https://developer.emporix.io/api-references/api-guides/companies-and-customers/customer-service/api-reference/authentication-and-authorization#post-customer--tenant-exchangeauthtoken) | A new endpoint for token exchange authentication mechanism. |

## Known problems

There are no known problems.

## Documentation

For more information, refer to the [SSO with Token Exchange](https://github.com/emporix/api-references/blob/main/quickstart/authentication-and-authorization/token-exchange.md).