Forum Discussion
Custom App requests authentication on Teams Mobile (iOS)
Erik365Online -Thank you for sharing the Teams App manifest. It looks well-structured, but the issue with SSO on iOS might be due to how the Entra ID app proxy handles authentication on different platforms.
The Entra ID app proxy settings are correctly configured for iOS devices. Sometimes, specific settings or policies might need to be adjusted to ensure seamless SSO on iOS. Ensure that the Entra ID app proxy is set up to pre-authenticate users before granting access to the application. This involves configuring the app proxy to use Azure AD for authentication. Review and configure conditional access policies to ensure they are not causing issues on iOS. Conditional access policies might treat iOS devices differently, leading to repeated authentication prompt.
Reference Document-
1. Plan a Microsoft Entra application proxy Deployment - Microsoft Entra ID | Microsoft Learn
2. Publish on-premises apps with Microsoft Entra application proxy - Microsoft Entra ID | Microsoft Learn
3.Translate links and URLs for Microsoft Entra application proxy. - Microsoft Entra ID | Microsoft Learn
Thank you, Sayali! I will check conditional access policies and Entra ID app proxy settings.
Just tried Pre Authentication with "Passthrough" which directly makes the website available and accessible even through MS Teams on iOS. However, this is insecure because it will not request any auth. I'll check conditional access policies as well.