Open the Outlook App: Locate and tap the Outlook app icon on your Android device.

On the welcome screen, tap Get Started.

Type your full Microsoft 365 email address (e.g., yourname@yourbusiness.com), then tap Continue or Add Account.

If prompted, select Work or school account (if you see an option between “Personal” and “Work or school”).

Enter the password for your Microsoft 365 email account and tap Sign In.

If your account has MFA enabled, follow the prompts to verify your identity (e.g., using a code from an authenticator app, a text message, or a security key).

You may be prompted to allow your organization to manage security on your device. Follow the prompts and tap Activate or Allow to continue.

Swipe through the introductory screens, and your Microsoft 365 inbox will open.