> ## Documentation Index
> Fetch the complete documentation index at: https://docs.verify-group.com/llms.txt
> Use this file to discover all available pages before exploring further.

# SAML ACS Callback

> Receives the SAML response from the IdP (POST binding). Register this as the ACS URL in your IdP.

<ParamField path="orgId" type="string" required>
  Your Organisation UUID.
</ParamField>

This endpoint is called by the IdP after successful authentication. Register it as the **Assertion Consumer Service (ACS) URL** in your IdP app settings.

On success, the user is redirected to `FRONTEND_URL/auth/sso/complete?orgId={orgId}` with their session established.