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Last Updated on April 12, 2024 by Arnav Sharma

What is Azure B2C?

Azure B2C is the future of identity management. It is a cloud-based service that allows organizations to manage user identities in a secure and scalable way. Azure B2C allows users to easily sign in and access resources without needing to remember multiple usernames and passwords. Azure B2C also supports social login so that users can sign in with their existing social media accounts.

Azure B2C is a cost-effective solution for organizations of all sizes. It is pay-as-you-go, so there are no upfront costs or long-term commitments. Azure B2C is also easy to set up and use, so organizations can get started quickly and without IT resources. Finally, Azure B2C provides a great user experience, with support for SSO and a wide range of non-Microsoft identity providers.

The Benefits of Azure B2C

The future of identity management is Azure B2C. It offers a complete, cloud-based solution that enables organizations to manage the identities of their customers and employees securely. Azure B2C provides a single platform for all your identity management needs, including user provisioning, password reset, and two-factor authentication. With Azure B2C, you can easily scale to support millions of users without having to worry about the infrastructure. And itā€™s cost-effective and scalable. With Azure B2C, organizations can focus on their core business while making sure that users have access to the applications they need to be productive.

There are many benefits to using Azure B2C for businesses.

  • First, Azure B2C provides a scalable and reliable platform that can grow with a business.
  • Second, Azure B2C offers a wide range of features and tools that businesses can use to customize their experience.
  • Finally, Azure B2C is backed by Microsoft, which means businesses can trust in the quality and reliability of the service.

How Azure B2C Works

Azure B2C is a cloud-based identity management service that allows developers to add sign-in and registration capabilities to their applications easily. Azure B2C supports multiple identity providers, including social providers such as Facebook and LinkedIn and enterprise providers such as Active Directory.

Azure B2C is built on top of the Azure Active Directory (AD) Identity Management system, which provides the foundation for secure user authentication and authorization in Azure. Azure AD also powers other popular Microsoft services such as Office 365 and Dynamics CRM Online.

Using Azure B2C, developers can create custom policies that control how users authenticate and register for their applications. For example, a policy can be created that requires users to sign in with their social account first, allowing them to link their enterprise account if they wish. Azure B2C also supports “Cloud Apps”, which leverages Azure Active Directory, cloud storage and other Microsoft services to build enterprise web applications. Microsoft has made the source code for B2C available on GitHub. Azure B2C is based on OWIN and ASP.NET Identity.

Terminology around Azure B2C

  • User Flows in Azure B2C

When it comes to authenticating users in a web application, Azure B2C is a popular choice. But what is a user flow?

A user flow is simply a set of steps that a user takes to complete a task. In the context of Azure B2C, these steps might include registering for an account, logging in, and resetting a forgotten password. By defining these steps ahead of time, you can ensure that your users have a smooth experience using your web application.

  • Azure B2C Claims

When a user signs in to your application, Azure B2C issues a signed JWT (JSON Web Token) that contains claims about the user. These claims are specific to the user account and represent information about the user, such as their name, email address, and any other user attributes that were requested when configuring the sign-in policy. These claims are used by your application to authorize access to protected resources. The set of claims in a token is determined by the policies that are used when the user signs in.

You can add custom claims to the tokens that Azure B2C issues. For example, you could add a role claim to indicate the user’s role in your organization so that your application can use this claim to authorize access to protected resources.

Azure AD B2C uses two types of policies to control how users sign in: identity providers and sign-in policies.

  • Azure B2C User Attributes

User attributes in Azure B2C determine what information is collected about users during registration and login. There are around fifteen user attributes that can be selected, and each one has a specific purpose. For example, the first name, last name, and email address are all self-explanatory. However, other user attributes like job titles or preferred language can be used to segment users into different groups for marketing or customer service purposes.

User attributes can also be used to customize the experience a user has on your website or app. For example, if you know the city a user lives in, you can show them relevant content such as local events or news stories. Or if you know their favourite sports team, you can show them score updates and highlight merchandise for their team.

Azure B2C also allows for custom user attributes to be created.

  • Azure B2C Tokens

Azure B2C offers three different types of tokens: id_tokens, access_tokens, and refresh_tokens.

Identity tokens are used to verify the identity of the user. They contain information about the user, such as their name and email address. Access tokens are used to verify that the user is allowed to access a certain resource. They contain information about the user’s permission on a certain resource.

When you create an authorization server, you must specify which type of tokens it handles and which values they have.

Access tokens are used to grant access to specific resources. They can be used to authenticate a user when requesting an API. The OAuth 2.0 specification is the most popular authorization framework for securing the communication between clients and resources, such as APIs. It allows users to share their own data without sharing their credentials.

Refresh tokens are used to renew access tokens. They can be used to get new access tokens without re-authenticating the user. For this to work, the user must have a refresh token and an access token. The refresh token is used to get a new access token. After obtaining a new access token, it can be used for as long as it remains valid.

  • Azure B2C Identity Providers

There are a variety of identity providers that can be used with Azure B2C. Social media providers such as Facebook, Google, and Microsoft are the most common identity providers. Other common identity providers include Active Directory, LDAP, and SAML.

Azure B2C supports a wide variety of identity providers to choose the best one for your needs. Social media providers are the most common choice for many users because they are easy to use and provide a high level of security. However, if you have an existing directory such as Active Directory or LDAP, you can also use those. SAML is also supported for single sign-on scenarios.

No matter which provider you choose, Azure B2C makes it easy to integrate with your existing systems and provides high security and flexibility.

The Future of Azure B2C

Azure B2C is used by organizations to manage customer identities and access control for their applications. Azure B2C is built on the Azure Active Directory (AD) Identity Platform and includes all the features of Azure AD.

Azure B2C offers several benefits over other identity management solutions, including:

  • The ability to scale to millions of users with no performance degradation
  • A pay-as-you-go pricing model that doesnā€™t require an upfront investment
  • Built-in security and compliance features such as two-step verification and password reset

Organizations that are looking for a scalable, cloud-based identity management solution should consider Azure B2C.


Q: What is Azure Active Directory B2C?

A: Azure Active Directory B2C is a cloud identity management solution for developers to authenticate and manage users in their applications. It allows users to sign-up, sign-in, and manage their profile information through a variety of authentication methods, including social and email-based login.

Q: How does Azure Active Directory B2C differ from Azure Active Directory?

A: While Azure Active Directory (Azure AD) is designed for enterprise use, Azure AD B2C is targeted towards customer-facing applications. Azure AD is used for employee and partner authentication, while B2C is used for consumer authentication.

Q: What is an Azure AD B2C tenant?

A: An Azure AD B2C tenant is a dedicated instance of Azure AD B2C that is used to manage a specific set of users and their data for authentication and authorization purposes.

Q: How do I use Azure AD B2C?

A: You can use Azure AD B2C by creating an instance of Azure AD B2C in your Azure portal and configuring the appropriate policies and user flows for your application. Once set up, you can then integrate Azure AD B2C into your application using the appropriate APIs and SDKs.

Q: What are custom policies in Azure AD B2C?

A: Custom policies in Azure AD B2C allow you to create and modify your own authentication and authorization policies beyond the default policies that are provided by Azure. This allows for greater flexibility and customization in your application’s user journey.

Q: What is a relying party policy in Azure AD B2C?

A: A relying party policy in Azure AD B2C is a policy that defines the relationship between your application and Azure AD B2C. It includes information such as the redirect URI used by your application, the type of user flow used, and any associated custom policies.

Q: What is single sign-on (SSO) in Azure AD B2C?

A: Single sign-on (SSO) in Azure AD B2C allows users to sign in to multiple applications with a single set of credentials. Once a user is authenticated, they can access other applications that are integrated with Azure AD B2C without needing to re-enter their credentials.

Q: What are Azure AD B2C features?

A: Azure AD B2C features include social identity provider integration, multi-factor authentication, user profile management, and custom policies. Additionally, it provides support for user flows, allowing for a seamless user experience throughout the authentication process.

Q: What are some additional resources for learning about Azure AD B2C?

A: Microsoft Learn provides several resources for learning about Azure AD B2C, including documentation, videos, and tutorials. Additionally, the Azure AD B2C portal includes several resources for getting started with the service.

Q: What are the next steps after setting up Azure AD B2C?

A: After setting up Azure AD B2C, your next steps may include integrating the service into your application, configuring custom policies and user flows, and testing the authentication and authorization process to ensure it meets your application’s needs.


keywords: openid connect, b2c policy, local account, azure ad b2c custom, azure active directory b2c tenant

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