# SSO with existing systems

## Using OAuth based authentication from registry

* Onboard new api client
* Setup redirect url and Valid origin
* Configure the mapping for scope fields if any required.

{% content-ref url="sso-with-existing-systems/digilocker-meripehchaan-sso" %}
[digilocker-meripehchaan-sso](https://docs.sunbirdrc.dev/~/changes/ADw6FieYgLmHh8a9Loem/use/sso-with-existing-systems/digilocker-meripehchaan-sso)
{% endcontent-ref %}