I want to set up multiple SAML applications in a single Auth0 tenant that will be integrated with the single Service Provider. The reason why I need to have multiple apps in Auth0 is that I have multiple organizations (tenants) in the SP. The SP requires a unique entity ID in IdP metadata. Unfortunately, Auth0 provides the same entity ID (issuer) for every SAML application.
Is there any way that I could customize the IdP entity ID?
I found this article but it occurred that it won’t help me as it describes the integration between Auth0 and other identity providers and not a service provider.
https://auth0.com/docs/authenticate/identity-providers/enterprise-identity-providers/saml#specify-a-custom-entity-id
Azure Active Directory has a solution for such multi-instancing setup. We can enable a setting which appends application ID to the Issuer in the SAMLResponse.
Is there anything similar in Auth0 for SAML add-on when Auth0 serves as the Identity Provider?