> ## Documentation Index
> Fetch the complete documentation index at: https://docs-dev-actions-triggers-prototype.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# IdP-Initiated Single Sign-On (SSO) Flow

> Accept an IdP-initiated SAMLResponse to authenticate users via SAML single sign-on.

## Endpoint

`POST /login/callback`

This endpoint accepts an IdP-Initiated Sign On SAMLResponse from a SAML Identity Provider. The connection corresponding to the identity provider is specified in the query string. The user will be redirected to the application that is specified in the SAML Provider IdP-Initiated Sign On section.

### Learn More

* [SAML](https://auth0.com/docs/authenticate/protocols/saml/saml-configuration)

## Body Parameters

<ParamField body="connection" type="string" required>
  The name of an identity provider configured to your application.
</ParamField>

<ParamField body="SAMLResponse" type="string" required>
  An IdP-Initiated Sign On SAML Response.
</ParamField>