B2C single sign on for Zendesk

Question

We are trying to implement sso to Zendesk in our b2c directory. This is documented in this link:

https://learn.microsoft.com/en-us/entra/identity/saas-apps/zendesk-tutorial

The problem is when a user email is in both the b2c directory and also in a Microsoft directory, such as with a hotmail email address. In this case the process redirects to the Microsoft directory for authentication and not to the b2c directory. The authentication will then fail. How do we force the process to route authentication to the b2c directory if an (e.g.) hotmail email address user is logging in.

Answer 1

Hello @James,

Thank you for posting your query on Microsoft Q&A.

Based on your description, I understand that you're trying to integrate the Zendesk application into your Azure AD B2C tenant but are facing authentication issues, as the redirection is going to your Microsoft Entra tenant instead of Azure AD B2C.

The documentation you followed is intended for Microsoft Entra tenants ("Microsoft Entra SSO integration with Zendesk") and not for Azure AD B2C. As a result, it is expected that authentication is redirecting to Microsoft Entra ID instead of Azure AD B2C since no custom policy has been configured for it.

To register a SAML application in Azure AD B2C, you must use custom policies. Below are the steps to create a custom policy for supporting SAML SSO in your applications:

1. Create Policy Keys and Identity Experience Framework Application.
2. Create Certificate
3. Download Sample Policies
4. Update Base file
5. Update Base_Extension File
6. Create policy file.
7. Upload Policy in Azure Portal
8. Run Policy.

You can refer to the following links for detailed guidance:

• Register a SAML application in Azure AD B2C
• Options for registering a SAML application in Azure AD B2C
• SAML test application for testing

I hope this information is helpful. Please feel free to reach out if you have any further questions.

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Answer 2

Thanks for the answer. Would recommend adding a paragraph to this acticle covering the situation with b2c.