Update 2-design-for-identity-access-management.md

Author: staleycyn

learn-pr/wwl-azure/design-authentication-authorization-solutions/includes/2-design-for-identity-access-management.md

@@ -18,8 +18,8 @@ As you look at your authentication and authorization options for Tailwind Trader
 
 Your first step is to determine the ideal IAM solution for Tailwind Traders. The following table lists three basic choices. We'll look closely at these options in the next units.
 
-- **Consider using Microsoft Entra ID**. Develop with [Microsoft Entra ID](https://azure.microsoft.com/services/active-directory/) for a solution that combines core directory services, application access management, and identity protection. Microsoft Entra ID provides an identity and access management system for Tailwind Traders employees that can operate in a cloud or hybrid environment.
+- **Consider using Microsoft Entra ID**. Develop with [Microsoft Entra ID](/entra/identity/) for a solution that combines core directory services, application access management, and identity protection. Microsoft Entra ID provides an identity and access management system for Tailwind Traders employees that can operate in a cloud or hybrid environment.
 
 - **Consider your business-to-business (B2B) requirements**. Support collaboration for guest users and external business partners of Tailwind Traders, such as suppliers and vendors. Build your solution with Microsoft Entra B2B (business-to-business) to support business-to-business operations.
 
-- **Consider your business-to-customer scenarios**. Control how Tailwind Traders customers sign up, sign in, and manage their profiles when they use your apps. Use [Azure AD B2C (business-to-customer)](/azure/active-directory-b2c/overview) to develop a Microsoft Entra solution that supports customer-focused operations.
+- **Consider your business-to-customer scenarios**. Control how Tailwind Traders customers sign up, sign in, and manage their profiles when they use your apps. Use Microsoft Entra External ID (external tenant configuration) to develop a Microsoft Entra solution that supports customer-focused operations. For existing Azure AD B2C deployments, note that B2C continues to be supported until at least May 2030.