m365 copilot android app work account not working on unmanaged device

Question

Company portal, outlook, word, excel workaccount signin all work.

M365 Copilot app can't find the local android signed in workaccount and falls back to live login signin page.

When entering my enterprise account it starts using the enterprise account of the local phone.

But the M365 Copilot app signin session never hits the conditional access User sign-ins (non-interactive).

This causes the app to go into a signin loop. It never sign in to my company.

Restart phone, reinstall app, reset data ... nothing works.

Answer 1

Hello UserA,

Thank you for providing the detailed information and for confirming that Company Portal, Outlook, Word, and Excel all work correctly with the same work account.

Since the sign-in loop occurs only in the Microsoft 365 Copilot app, I recommend contacting your organization’s IT administrator first. This does not appear to be a general problem with your work account or Android device. Your administrator can review whether the Microsoft 365 Copilot app is included correctly in your organization’s mobile-app protection and Conditional Access configuration. Accessing to work content on unmanaged Android devices can depend on both Company Portal and the policies assigned to the specific application.

If the administrator confirms that your account, license, Conditional Access policies, and app-protection settings are configured correctly, but the Microsoft 365 Copilot app still remains in the sign-in loop, the issue may require a deeper investigation by Microsoft Support. Your administrator can collect the relevant diagnostic logs from Company Portal and open a support ticket through the Microsoft 365 Admin Center. These details will allow the support engineer to review the authentication flow and engage the appropriate Microsoft backend team if necessary.

I understand that involving another team may add an extra step, but it will ensure that the relevant account, policy, and diagnostic information can be reviewed securely and accurately. I hope your IT team can help identify the cause and restore access to the Microsoft 365 Copilot app as soon as possible.

Kind regards,

---

Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.