SaaS Application Web App
The SaaS Application Web App is a sample application where you will provide your SaaS service.
This component is the equivalent to www.office365.com where anonymous users are able to navigate to, explore your various service offerings / pricing tiers and onboard.

Administrative API
The Administrative API receives requests for new tenants and supports all CRUD operations for your existing tenants.
This component interfaces with SaaS Application Web App, Azure AD B2C and SaaS Sign Up.

Azure AD B2C
Azure Active Directory B2C provides business-to-customer identity as a service. Your subscribers use their preferred social, enterprise, or local account identities to get single sign-on access to your applications and APIs.
This component interfaces with SaaS Application Web App, the Administrative API and SaaS Sign Up
