Using Outlook for Android in business environments for email and scheduling
For a work or school Outlook account on a new Android phone, the most likely causes are either an account setup problem in the app or a sign-in/security requirement that must be approved by the organization.
Try these steps in order:
- Remove and re-add the account in Outlook for Android.
- Open Outlook on the phone.
- Go to Settings.
- Remove the non-working work account.
- Add it again.
- If prompted during setup, complete any required sign-in approval.
- Some Android setups require Microsoft Authenticator or Company Portal to be installed and running.
- If either app is already installed, open it first, then open Outlook again.
- On some Android devices, power-saving or app optimization can block Authenticator or Company Portal from running correctly in the background.
- Check Android power-saving and app optimization settings.
- Turn off power-saving mode if it is enabled.
- Disable battery optimization for Authenticator or Company Portal so those apps can stay active.
- Then open Authenticator/Company Portal first, and after that open Outlook.
- If calendar, contacts, or mailbox content still does not appear, make sure the account is added as Exchange/Exchange ActiveSync, not IMAP or POP.
- IMAP and POP can sync email only.
- They do not sync calendar or contacts.
- Re-adding the account and choosing Exchange ActiveSync or Exchange is the supported setup for calendar and contacts sync.
- If Outlook still shows an error telling contact the administrator, involve the Microsoft 365 admin or IT support.
- For work or school accounts that use Microsoft 365 for business or Exchange-based accounts, admin help is specifically recommended.
- This usually means the organization may require additional security approval or device configuration.
If email worked before on the old phone and now fails only on the new phone, re-adding the account is the first step. If the account still cannot be added after that, the next best step is to have the Microsoft 365 admin check the account and device sign-in requirements.