M365 account in mobile app require sign-in every few day

Nattawut Teerajarukul 216 Reputation points
2022-01-30T15:41:29.35+00:00

My company use M365. I using M365 service via PC, laptop, and mobile with several apps. I found problem on mobile apps only.
The password don't change. MFA was enabled. Others employee don't have this problem.
First time I found this problem in late May 2021, which I started working first month.
In July 2021, I tried factory reset mobile and install app then sign-in again. This problem seems to fix. But in Aug 2021 this problem come back again and require sign-in every few day.
I tried update android from 11 to 12, it cannot fix.
I asked administrator for sign-in policy. They said not any about revoke session or sign-in frequency.
I use hotmail account too. But only M365 account require sign-in.

How can I solve this problem? Please suggest me to solve it.

Mobile app

  • Outlook app
  • Office app
  • Teams app
  • Microsoft Authenicator

Mobile detail
OS: android 11, 12
Mobile: Google Pixel 4a(5G), Pixel 6

License: M365 E3

Microsoft 365 Publishing
Microsoft 365 Publishing
Microsoft 365: Formerly Office 365, is a line of subscription services offered by Microsoft which adds to and includes the Microsoft Office product line. Publishing: The process of preparing, producing, and releasing content for distribution or sale.
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Microsoft Entra ID
Microsoft Entra ID
A Microsoft Entra identity service that provides identity management and access control capabilities. Replaces Azure Active Directory.
19,464 questions
Accepted answer
  1. VipulSparsh-MSFT 16,231 Reputation points Microsoft Employee
    2022-02-03T08:36:56+00:00

    @Nattawut Teerajarukul Thanks for reaching out. Normally the refresh token which gets assigned to the app after the authentication is valid for 90 days if the user keep opening the app.
    in backend it has the capability to silently fetch new access tokens.

    In your scenario, if you are being asked for the password every few day, I will investigate why it is not able to silently fetch the new tokens.
    Help me with the following :

    1) Is your device managed by some MDM (Like Intune)
    2) Does these apps have the capability to run in background (Battery optimization should be turn off for Authenticator , Outlook, teams apps)

    When these apps are not able to process the silent background function due to battery optimization feature in Android, they might show the behavior you are having. Check them and let me know if there is not MFA or conditional access policy assigned.

    Please remember to "Accept Answer" if any answer/reply helped, so that others in the community facing similar issues can easily find the solution.

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  1. Nattawut Teerajarukul 216 Reputation points
    2022-02-17T04:45:59.023+00:00

    Dear @VipulSparsh-MSFT
    Sorry for late.
    I found some point that it may be cause of this issue.
    "ristrict data access when data saver is on" App info > Mobile data & WiFi > unrestricted data usage > off (default)
    because I configured my phone will be schedule turn on bed time at night, that turn on do not disturb and battery saving.

    Now, I enable "unrestricted data usage ", "unrestricted battery usage". and I just delete and reinstall Outlook app. So, it it may not encounter any problems during this period.

    Please pending your support ticket. I will feedback again for this scenario.