Your sign-in was successful but does not meet the criteria to access this resource. For example, you might be signing in from a browser, app, or location that is restricted by your admin.

Hi @cha123

Welcome to our forum!

As you describe, global admins within your organization can't sign in either. Given this situation, you can only contact technical support by phone to get a fix.

You may contact support by Global Customer service Phone number.

Thank you for your understanding and patience!

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Your sign-in is restricted by a conditional access policy. Your Office 365 administrator need to login to Entra ID with the admin account and check which conditional access policy is blocking your access.