Forum Discussion

Brass Contributor

Mar 28, 2021

Showing an external WebApp in Teams tab - Authentication issue

We have some important company websites - Angular applications that are using ADAL/MSAL or no authentication at all - that our users are using very often. Currently they have the browser open + MS Te...

Brass Contributor

Mar 29, 2021

Mamatha-MSFT I also found this sample. One question about this. I found two different ways to authenticate. First way is to use authentication through SSO - another way is https://docs.microsoft.com/de-de/microsoftteams/platform/tabs/how-to/authentication/auth-tab-aad one: "Authenticate a user in a Microsoft Teams tab". Can you tell the difference?

I was hoping to launch my own angular app in the tab without doing too much efford (extra hosting etc..) but it might not be possible.

Mamatha-MSFT

Former Employee

Mar 29, 2021

David_Elsner Authentication using Azure AD is used to get access to the user's profile information from Azure AD and Microsoft Graph.
single sign-on (SSO) is used to consent the app. If a user consents to use your app, they do not have to consent again on another device as they are signed in automatically.

Mamatha-MSFT
Former Employee
Mar 31, 2021
David_Elsner Please let us know does that help clarify.
- cysemb
  Copper Contributor
  Sep 07, 2021
  Mamatha-MSFT Has this issue been resolved? I'm also facing the same issue. Using Azure B2C, MSAL, InteractionType.Popup, Angular frontend. On Teams browser version, it works but on Teams windows app it does not. It tries to open the about page for the popup and points to windows store.