Azure AD Guest User - Can't acces TeamS

Question

So simple task it is - create a guest user inside AD tenant and then add him to one of domains teams, inside TeaMs app. Still I've got stuck and need some help.
Firstly I've created test, guest user in Azure AD admin panel. Received an invite to test gmail account and accepted it. Password set, user is all set. Of course at start this user doesn't see a thing inside his o365 dashboard.
Next steps I've done as admin:
Assigned o365 Business Basic license to this guest user adding Teams App license.
In Azure AD admin panel added user into the Group. Which was automatically created when I've done separate Team for B2B / Guest Users. This group obviously has the same name as Team created in TeamS app.

--- Guest User still don't see a thing in his o365 ---

Then I've read about "Add guest users to an application" inside Azure AD admin Panel - Enterprise applications. And of course I've done it. User added, default access role assigned.

--- Guest User now can see Teams App in his o365, but while trying to open it - instant error about "no access, contact admin.. bla bla bla" ---

What else am I missing?

P.S. Link invitation to that team also doesn't work with same error.

Answer 1

After I've remade a new Team and send new invite to same user - everything worked. Old link from first invite-mail still doesn't work.
Problem solved. In strange way, still solved )

Answer 2

Hi @Oleksandr Borodai ,

In this case, we recommend you check the organizational relationships settings to ensure that sharing with guests is not blocked and make sure you have allowed guest access in Microsoft Teams.

Besides, please make sure the Microsoft 365 Group settings turned on in order for guest access in Teams to work. For more details about setting steps, you can refer to:

https://learn.microsoft.com/en-us/microsoft-365/solutions/collaborate-as-team?view=o365-worldwide

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Answer 3

In the last few months I've seen the behavior of the guest experience change. Some of my guests have found that when they follow the guest invitation link they receive from Microsoft then land on https://myapplications.microsoft.com and no apps are listed.

In the past, they would see the Microsoft 365 groups that they were a member of an be able to click on a group, then that would display a new page with links to Teams or SharePoint.

In the new UI, there is a drop down next to My Apps that has an entry for groups. When they click on groups, the browser is redirected to https://account.activedirectory.windowsazure.com/r#/groups but they receive a message that "This functionality is not enabled or not available".

I think it is possible that this issue occurs only when the guest is an existing member of another Azure AD organization (tenant)

I submitted a support ticket for this problem asking if there was a was to configure an Enterprise app in my Azure AD tenant such that it was displayed in the guest's https://myapplications.microsoft.com page but the ticket was quickly closed as not possible/won't fix or something along those lines.