MS Teams Deep link is not working properly in MS Teams Mobile app (iOS & Android)

Question

Dear community,

I am implementing an MS Teams app that functions as a personal tab, allowing users to submit PTO requests via a chatting with Bot. The bot interacts with our SaaS platform through APIs. Additionally, the app includes an MS Teams Tab, enabling end-users to perform tasks transparently within Teams, eliminating the need to open our web page.

We use deep links from Bot's Adaptive Cards to navigate users to specific tabs within our MS Teams app. While everything works perfectly on the web and desktop versions, the functionality on mobile devices has issues. (This feature appeared to work correctly on mobile before November 7, 2024, but now behaves differently, with variations based on the OS.)

Our deep link follows the tutorial from Microsoft documentation:

https://learn.microsoft.com/en-us/microsoftteams/platform/concepts/build-and-test/deep-link-application?tabs=format1%2Cteamsjs-v2%2Cformat2%2Cspecific%2Cformat3%2Cformat4%2Cformat5#configure-deep-link-to-browse-within-your-app-manually

The deep link we use is straightforward, intending to navigate the user to the "pto" tab:

https://teams.microsoft.com/l/entity/c47a64ab-...-c3ef53d22760/pto

On Android: The deep link "PTO Request" redirects the user (from chatting with Bot) to another bot's chat window instead of the intended tab "pto".

• Android version: 11 RKQ1.200826.002
• MS Teams app version:
  • Version: 1416/1.0.0.2024203702/1113
    • Calling Version: 2024.40.01.6

On iOS: The deep link opens Safari and navigates to the website URL defined in the MS Teams Tab instead of the intended tab.

• iOS version: 17.6.1
• MS Teams app version:
  • Version: 6.20.1
    • Build: 6.20.77.2024202601/1102 (general)
      • Calling Version: 2024.40.01.6
        • Release Branch: 2024Oct-T2

For certain deep links that still work, they navigate to the intended tab but display it under the bot's chat dialog window, which is unexpected behavior.

This seems to be an issue with the MS Teams mobile app. Has anyone else encountered this problem or found a fix?