I cannot log into my admin center

Hi @Rachel Herrick,

Thank you for reaching out, and I’m sorry to hear you’re unable to access your Microsoft 365 admin page. I understand how disruptive this is, especially when you need to manage users and the sign‑in keeps failing with error 50058.

Error 50058 indicates that no valid sign‑in session or user token was available for Single Sign‑On (SSO). In simple terms, the admin portal attempted a silent login, but your browser did not provide the required Microsoft authentication cookie or session. This commonly happens when cookies are blocked, a different Microsoft account is signed in, or an outdated SSO token is still cached.

Here are a few steps you can try:

1/ Use a private window and the correct admin URL

• Open an InPrivate/Incognito window in Edge or Chrome, go to https://admin.microsoft.com, and sign in using your work/Entra ID account (not a personal Outlook/Hotmail account).
• Also try another browser (switch between Edge ↔ Chrome) and test on a different network. VPNs, proxies, ad‑blockers and strict privacy settings can interfere with the sign‑in cookie and lead to error 50058.

2/ Sign out of all Microsoft sessions and sign in again

Having multiple cached Microsoft sessions or accounts can interrupt silent SSO. Completely sign out from office.com and login.microsoftonline.com, close all browser tabs, then sign in again directly at https://admin.microsoft.com. A fresh session usually resolves this specific error.

3/ Clear stale SSO credentials on your device

Old authentication tokens can cause 50058, especially after password changes or tenant switches.

• On Windows, open Credential Manager > Windows Credentials and remove old Office/ADAL/WAM entries.

• Also check Settings > Accounts > Access work or school. If you see an outdated work account connection, select Disconnect, reboot, and sign in again. This resets local tokens and often resolves sign‑in failures.

4/ If another admin is available in your organization

Ask them to check your failed login in:

Entra ID > Monitoring & health > Sign‑in logs

They can search by your Correlation ID or Timestamp, and view the specific failure reason and details - such as a Conditional Access block or MFA requirement. If they can’t resolve it, they can open a support ticket directly from the admin center using the Get support for Microsoft 365 for business guidance.

If the issue continues and you are the only admin:

You can contact Microsoft support directly through https://support.microsoft.com/contactus.

Or call using the numbers listed at: Customer service phone numbers - Microsoft Support.

I hope this information helps. Please try the steps and let me know whether they resolve the issue. If the problem persists, we can work together to find a solution.  

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