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Hi @Luke Urtnowski,
Good day! Thank you for reaching out to Microsoft Q&A forum and sharing your experience.
It looks like the login page you're using is intended for personal Microsoft accounts, which is why you're seeing that error. To access your business account, please head over to office.com and sign in using your work credentials.
And thank you for your update, you're absolutely right, and it's great to hear you found a solution. If you're open to it, sharing what worked for you here could be really valuable to others facing the same issue.
Thanks again for your patience and for being part of the Microsoft Q&A community. If there's anything else I can help with, feel free to reach out - I'm here to support you.
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