Hi David Britz,
Thank you for posting in the Microsoft Community Forums.
The use of the expression “MAY” in error messages is usually intended to avoid absolutes and to provide users with some flexibility to check their login information or contact an administrator for further confirmation. This expression is common in technical support and error messages and is intended to minimize misunderstandings and conflicts.
Your Azure account may be inactive or disabled. This may be due to the account expiring (e.g., 90-day trial ending), the account being suspended or deleted by an administrator, etc.
The account may be locked for security reasons, such as multiple failed login attempts.
Incorrect login credentials:
Although you have confirmed that your login information is correct, the system may not recognize your credentials correctly for some reason (e.g., caching issues, network latency, etc.).
If you have recently changed your password or email address and these changes have not been synchronized across all related systems, this may also cause this issue.
Multi-Factor Authentication (MFA) Issues:
If your account has multi-factor authentication enabled, but the multi-factor authentication step is not completed correctly during the login process, this may also result in a failed login.
Wrong catalog selection:
In the Azure portal, if you select the wrong Azure catalog (also known as a tenant), you cannot successfully log in even if your login information is correct.
Best regards
Neuvi