An Architect needs to advise the team that manages the Identity Provider how to differentiate...

The Entity Id is the SAML SSO setting in Salesforce that provides the capability to differentiate Salesforce from other service providers. The Entity Id is a unique identifier for the service provider that is sent to the identity provider as part of the SSO request4. The identity provider uses the Entity Id to determine which service provider configuration to use and which SAML assertion to sendback5. The other options are not valid SAML SSO settings for this purpose. The Identity Provider Login URL is the URL of the identity provider’s SSOservice that Salesforce redirects the user to for authentication4. The Issuer is the unique identifier for the identity provider that is sent by the identity provider as part of the SAML response4. The SAMLIdentity Location is the location of the user’s identity inthe SAML assertion, either in the Subject element or in an Attribute element4.