Do you mean service provider by SDP? I assume you have 40 salesforce instances/systems which you want to connect to an external identity provider. If so, you have to create single-sign-on settings in your Salesforce orgs if you want to establish SAML connection otherwise you can create Auth Providers in case your identity provider supports OpenID Connect.
I assume you have 40 salesforce instances/systems which you want to connect to an external identity provider.
If so, you have to create single-sign-on settings in your Salesforce orgs if you want to establish SAML connection otherwise you can create Auth Providers in case your identity provider supports OpenID Connect.