Single Sign On with AzureADB2C and B2B - azure

Is it possible to configure single sign on to work with for both AzureB2C and B2B tenant?
I know it can be configured for AzureAD B2C and definitely it works for AzureB2B.
Is there a way a user in my B2C tenant perform single sign on also to application in my B2B tenant?

If you are wanted your user to sign in on both B2B and B2C tenant with same email Yes you can do it.
As you know how to configure it on B2C tenant
Azure B2B allows one organization to invite members from other
organizations to share application access. It’s only one of its
service features. You may know more about B2B user here
Now in your case you can add your user B2C user here in B2B tenant or vice-versa. There is an option on azure portal New Guest User both on B2C and b2B tenant. You can easily add them up.
See the screen shot below:
Once they received invitation they would able to access the resource what they are assigning to.
User Invitation Using MS Graph
You can also do the same operation using Microsoft Graph API
You even can create a Custom user flow for newly added user. For more outline you could check here
Points To Remember For B2B
Before configuring user invitation be care about below notes!
Note: If you still have any confusion about work around for B2B and
B2C you could also refer this document

Related

Can I get a list of B2C Tenant Users (Created using signin-signup policy) Using Graph Explorer?

I'd like to use Microsoft Graph Explorer to work with my Azure AD B2C Tenant.
Initially, all I want to do is retrieve a Custom Attribute that I've assigned to an application registration. The custom attribute will store the UserAppPermission value, a 'role' replacement for B2C since it doesn't natively support them.
Can I get a second set of eyes on my process? I'd like to make sure I'm reading this properly.
First goal: Get a list of applications registered to my B2C Tenant. Reasoning is... if the app registration doesn't appear then future queries are unlikely to be successful.
Resource#1 "Manage Azure AD B2C with Microsoft Graph" (Note B2C in the title)
(1) I registered an application in my B2C tenant with permissions in excess of the minimum, checked this process twice: Register a Microsoft Graph application (Note B2C in the opening paragraph, and throughout the document).
(1a) Uncertain if the Azure portal was being buggy, I also registered this application with the 'Global Administrator Role' ... absolute overkill & insecure ..
(1b) I am certain that I assigned the appropriate Microsoft Graph API permissions in the app registration tab
(1c) As described in the doc, I also granted the application the user administrator role, although that is contained within the global administrator role.
(1d) Per the doc, "Now that you've registered your management application and have granted it the required permissions, your applications and services (for example, Azure Pipelines) can use its credentials and permissions to interact with the Microsoft Graph API."
When I run "https://graph.microsoft.com/beta/applications" to get a list of registered applications, all I see is the single App Registration our 'root' Azure account has for our Azure Functions App. Since this was an article on managing azure ad B2C with Microsoft Graph, I was expecting to see the applications registered to my B2C Tenant.
? Does anyone read (1d) to mean that I should not be able to use https://developer.microsoft.com/en-us/graph/graph-explorer, logged in as the B2C global administrator, and granting all permissions the endpoint requires, to make Microsoft Graph API queries?
Next goal: Get a list of users registered to my B2C Tenant
Resource#2 "List Users" - the link to this resource was provided by Resource #1, link provided above.
(1) There only mention of B2C in this article is: "The $count and $search parameters are currently not available in Azure AD B2C tenants."
(2) The request to get all users is GET "https://graph.microsoft.com/v1.0/users"
(2a) The request returns a list of users for the MyOrg's root AD tenant, not the application's B2C tenant. Not surprising since there's nothing in the request to specify the B2C tenant.
(3) Another resource provides this request format: https://graph.microsoft.com/beta/.onmicrosoft.com/users, which specifies the b2c tenant.
(3a) This executes without error in Graph-Explorer but does not return any of the users that registered for the application using the sign-up/sign-in policy (Consumer B2C Users). It still returns a list of users for the 'root' Azure account.
Update re:specifying tenant in graph-explorer:
While logged in to Graph Explorer us my work MS email which is registered as a global admin for our Azure account and owner of the B2C tenant I specified:
This returns a list of applications for the root Azure account, not app registrations for the B2C Tenant I specified. Perhaps I misunderstood the intent of this Graph API call.
I optimistically ran 'https://graph.microsoft.com/beta/identity/b2cUserFlows' with the tenant specified in the URL (as in screenshot). Result:
"error": {
"code": "AADB2C",
"message": "'4fba2ea8-XXXX-XXXX-964e-99f48b79d925' is not an Azure AD B2C directory...
I'm still not certain what the UUID returned in the message represents. The UUID has no correlation, that I can find, with the tenant I specified in the URL.
The reason is that you are using an Azure account which is from your root AAD tenant.
You have two options to resolve it.
Specify the tenant in the Graph Explorer URL:
https://developer.microsoft.com/en-us/graph/graph-explorer?tenant={Your b2c tenant}.onmicrosoft.com. Still use that Azure account from root
AAD tenant to sign in and you can get a list of applications and
users of your B2C Tenant now.
Another method is creating a new user in your B2C tenant and assign
Global admin role to it. And then sign into
https://developer.microsoft.com/en-us/graph/graph-explorer with
this new user. Now you can list applications and users of your B2C
Tenant as well.
Update:
Don't use a Consumer account (local account) for the second suggestion. You should create an AAD user (work account, format: mytenantname.onmicrosoft.com ) in Azure portal in B2C tenant and assign it global admin role.
Overview of user accounts in Azure Active Directory B2C for your reference.
#AllenWu's second solution was, in effect, correct but not explicit enough for me.
The New user interface in the B2C Tenant offers three options for creating users: Create user, Invite user and Create Azure AD B2C user. Most of my work has revolved around B2C users so I did that and gave the user Global Admin rights and my Graph Explorer results were unchanged.
Another user provided this suggestion and made it clear that I needed to create a user w/an email address of #my-tenant-name.onmicrosoft.com. I created such a user, assigned it Global Admin rights, and I was able to use Graph Explorer as I expected.
Note that users with an email of "SomeTestUser_gmail.com**#EXT#**#my-tenant-name.onmicrosoft.com do not behave in the same way.
Thanks for the suggestions & feedback & I hope this helps if you ended up here with the same question.

How can I invite Guest Users to the Azure B2C Platform and provide them access to the application?

I have a requirement where we want the users to use their social accounts to login into our application (i.e. get an ID Token) through Azure B2C. I configured the Identity Provider and create a user flow for Sign in only. We don't want Users to Sign Up because that through Invitation only. When I use the "Invite User" to the live.com account and the user accepts the invitation and tries to login into the application, I get the below error.
AADB2C99002 User does not exist. Please sign up before you can sign in.
But the user is existing as a Guest User.
When I allow Sign up and the user actually does the Sign-up and then login in, it works.
Questions:
Why isn't the Guest User allowed to access the application? What needs to be done for the same to work?
If it's not possible, I don't want the user to be a "member" to avoid maintaining their credentials. I want the users to use their social accounts only.
As I don't have the requirement of self sign-up and the only invitation-based, how do I achieve my requirement?
Thanks,
Neel
Please see the Overview of user accounts in Azure Active Directory B2C.
Guest account - A guest account can only be a Microsoft account or an Azure Active Directory user that can be used to access applications
or manage tenants.
Consumer account - A consumer account is used by a user of the applications you've registered with Azure AD B2C. Consumer accounts
can be created by:
The user going through a sign-up user flow in an Azure AD B2C application
Using Microsoft Graph API
Using the Azure portal
Guest account is specifically distinguished from Consumer account. So Guest user can't sign into B2C application directly.
Your three questions are actually the same question: How to log in a social account without managing its credentials?
Please refer to Add an identity provider to your Azure Active Directory B2C tenant.
In order to let live.com account sign in, you need to Set up sign-in with a Microsoft account using Azure Active Directory B2C. Choose the policy type (User flow or Custom policy) you want to find the corresponding steps.
If you need your customers from other social idps such as Facebook, Google and so on, you can find the corresponding article on the left.

It's possible to sign in external users if Azure B2C tenant where tenant has restriction?

I have a AD B2C multi tenant application
I have custom policy which have filtering on my tenant (Microsoft article)
Now on this tenant I invite new users from other tenants (I got "userEmail_contoso.com#EXT##mytenant.onmicrosoft.com)
Why I can't to sign in with external user? It's possible to filtering the tenant but allow external users from same tenant to sign in?
2.
3.
Please see METADATA in the document you shared:
<Item Key="METADATA">https://login.microsoftonline.com/common/v2.0/.well-known/openid-configuration</Item>
We can see that it is using common endpoint. common endpoint means users with both a personal Microsoft account and a work or school account from Azure AD can sign in to the application. See reference here.
So although the personal Microsoft account is added into your tenant as a guest user now, it is treated as a personal account when it meets common endpoint. As a result, it is blocked from logging in.
In short, B2C multi-tenancy does not support guest user login.
In order to sign in as a guest user from your tenant, you should look into Set up sign-in for a specific Azure Active Directory organization in Azure Active Directory B2C. You can see that the METADATA is https://login.microsoftonline.com/tenant-name.onmicrosoft.com/v2.0/.well-known/openid-configuration in this document, which should treat your account as guest user.

Azure B2C: Enable other devs to access B2C Tenant via their Microsoft Accounts

I have set up an Azure B2C tenant using this tutorial.
This creates a new AD for B2C that is separate to our company AAD (If I try to add B2C on the companys' main Azure AD, it states it is 'not a B2C tenancy', so I went with the tutorial and created a new B2C Tenancy).
When I (the creator of the B2C tenant) log in, I can access the company AAD and the B2C Tenant (details obfuscated). My standard Office365 shows both.
However, other developers in the team can't see the B2C Tenant.
I want them to be able to access it via their Office365 credentials.
Looking online, I found this and this, but they both seem to be about logging people from your company AAD into your app, rather than inviting other devs as administrators. I tried the former to get a developers records in the User table, but after giving them rights, they still cannot see the B2C Tenant.
I then tried to Add A Connected Organisation, but I still can't access people from the main tenant to give them access.
The Invite users from the Portal doesn't seem to offer the choice of a Microsoft Login. If I try 'Create User', the domain doesn't show and 'Invite User' seems to make them Guests with non-work logins.
I don't want to set the devs up with 'non-work' logins, as that seems a bit messy.
How do I add other developers from the company AAD to my B2C Tenant using their work credentials (Office365/Azure AD) so they too can also administer the application?
You Need to choose the Guest User and choose Invite User and after providing the User information assign the role as Application administrator or Global Administarator. Once you invite the user will recive a invitation to access the B2C tenant. They can Access the B2C Tenant with there own credentials.

how to federate between Azure B2B and B2C

We are designing an application which will be used by client's employee, some of their vendors and consumers as well. All of these three types of user will have the different set of rights.
We were analyzing the Azure AD and found that Azure B2B can be used for employees and vendors whereas B2C can be used for consumers. So, we need both of them. Can we setup our application in such a way that if can authenticate from B2B and B2C both? Or any other suggestion to implement this.
Thanks In Advance
You can totally setup an app to authenticate with multiple directories.
Setup one Azure AD that will be used by employees, where partners can be added through B2B. Then also setup a B2C directory for the customers.
On your app side you need to display a choice for the user: if they want to sign in as an employee/partner or as a customer. Then you redirect to the correct sign-in page.
You'll need to define the app twice, once in both directories.
The actual implementation will vary based on your tech stack, but in ASP.NET Core you would need to setup multiple Open ID Connect middleware. And none of them can use AutomaticChallenge, as you do need to know where to redirect the user, you can't really choose for them.
Update to B2C allows you to do it all from there now
Azure AD B2C now allows custom policies (preview feature). This means you can use any OpenId Connect provider for sign-in, including Azure AD of course.
This new feature allows you to:
Create a B2C tenant with custom policy for employee/partner login through Azure AD
Send all users to authenticate with your B2C tenant
Users can choose if they want to sign in with social accounts or if they are an employee or partner
If they choose to sign in as employee or partner, they would be redirected to your Azure AD
In the end your app gets a token from B2C telling where the user signed in, so you can then do authorizations based on that info

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