Hi @Michael Brennan,
Welcome to Microsoft Q&A forum.
Thank you for reaching out regarding how to access the Microsoft 365 admin center to manage your accounts.
Firstly, the primary requirement to sign in is to use an account that has been assigned an administrator role (such as Global Administrator). Please note that standard user accounts do not have permission to access the admin portal.
If you have confirmed your account is an administrator but you are still unable to access the admin center, please let me know the specific admin role assigned to it (e.g., Global Admin, Billing Admin).
If your account is an administrator, I have outlined the standard sign-in steps for you below:
- Open your web browser and navigate to the official portal: https://admin.microsoft.com
- Enter your administrator email address (e.g., ******@yourcompany.onmicrosoft.com) and password.
- If prompted, approve the sign-in request using your multi-factor authentication (MFA) method (such as a code from the Microsoft Authenticator app or a text message).
- Once signed in, you will be on the admin center dashboard.
Once successfully signed in, you will be on the admin center dashboard, which should resemble the image shown below.
Should you encounter any specific error codes or messages, please share those details with us. We will investigate further and provide additional guidance.
I hope this information is helpful. Please follow these steps and let me know if it works for you. If not, we can work together to resolve this.
Thank you for your patience and your understanding. If you have any questions, please feel free to reach out. I'm looking forward to your reply.
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