How to sign into Microsoft Office 365 for business?

To sign into Microsoft Office 365 for Business, visit portal office com website (https://portalofficecom.com/) and click Sign In. Enter your business email and password provided by your organization. If prompted, complete multi-factor authentication. Once signed in, you can access apps like Outlook, Word, Excel, and Teams. Ensure you’re using a licensed business account. For easy access, you can also install Office apps on your computer or mobile device.