Misconfiguration SSO SAML to Entra ID

Hello Calendly Support,

When a user tries to sign in through SSO, the response comes back with the Identifier (Entity ID) of another application, the Calendly enterprise application, instead of the custom enterprise application we configured in Entra ID. The SAML response therefore does not match what is expected (Audience / ACS URL / certificate) and the sign-in fails.
 

We are setting up SAML SSO between our Calendly organization and Microsoft Entra ID (AMPLI Mutuelle tenant), and we are running into an issue at sign-in.

Symptom:
After completing the SAML configuration, when a user tries to sign in through SSO, the response comes back with the Identifier (Entity ID) of another application, the Calendly enterprise application, instead of the custom enterprise application we configured in Entra ID. As a result, the SAML response does not match what is expected (Audience / ACS URL / certificate) and the sign-in fails.

Best regards