Cannot log in to Outlook account on a new phone

For a new phone, the fastest checks are:

1. Install the latest Outlook mobile app. Recurring password prompts or sign-in failures can happen if the app is outdated.
2. If this is a Microsoft personal account, use the sign-in helper tool to identify the account issue and follow the recovery steps it provides: Start
3. If this is a work or school Microsoft 365 account, use self-service password reset if it is enabled: Reset password
4. On Android, if another Microsoft app such as Authenticator or Company Portal is installed, check device power settings:
   • Turn off power-saving mode.
   • Allow Authenticator or Company Portal to auto-launch and secondary launch.
   • Disable power optimization for Authenticator or Company Portal.
   • Open Authenticator or Company Portal before opening Outlook.
5. If sign-in still fails, verify the account can sign in through Outlook on the web or webmail. If web sign-in also fails, the account issue must be resolved first.
6. If the account is a work or school account and Outlook still cannot sign in on the new phone, contact the Microsoft 365 admin or technical support.

If the error shown is NoSuchAccountException: Login Error on iOS, check these specifically:

• Verify the username and password.
• Try the domain UPN address instead of the email address.
• Verify sign-in to OWA/webmail.

• Can't sign in to the Outlook mobile app
• Failed to add Microsoft 365 account or cannot sync new messages with your existing Microsoft 365 account?
• Troubleshoot Outlook mobile issues
• NoSuchAccountException: Login Error