Account Locked & Blocked

How to Fix Locked Account Error When Opening a SharePoint Link

Chanuka Geekiyanage Sep 28, 2026 870 views

Question details

The user needs to access a SharePoint link shared by another organization but receives an account-locked error message, despite being able to log into their Microsoft 365 account normally.

How to Fix a Locked Account Error When Opening a SharePoint Link

Product: SharePoint
Device & OS: not provided
Scenario: Attempting to open a SharePoint sharing link sent via email from an external organization.
Observed behavior: An error screen appears indicating that the account is locked, blocking access to the shared file, even though the user is already signed in to their Microsoft 365 account.

Before you start

Verify that you are using the exact email address the file was shared with and that you can successfully sign in to your own Microsoft 365 account without issues.

Solution 1Recommended

Open the SharePoint Link in an Incognito Window

Browser cache or conflicting account sessions often trigger false account-locked errors. Using an Incognito window ensures a clean session.

When accessing external SharePoint links, your browser might try to pass existing session tokens that conflict with the external organization's security requirements. Isolating the session resolves this.

Open a Private Browser Window

Open Google Chrome, click the three dots in the upper-right corner, and select 'New Incognito window'. If using Edge, select 'New InPrivate window'.

Sign In to Microsoft 365

Navigate to https://portal.office.com in the private window and enter your Microsoft 365 account credentials to sign in.

Access Your Email

Click the App Launcher (waffle icon) in the top left corner, choose 'Outlook', and find the email containing the shared link.

Open the Shared Link

Click the SharePoint link from the email directly within this private session to verify if the account locked error is resolved.

Open the SharePoint Link in an Incognito Window

Tip: Always open external links in an Incognito window if you frequently collaborate with multiple organizations to prevent cross-tenant authentication conflicts.

Solution 2

Request a Guest MFA Reset from the Sharing Organization

If the error persists, the external organization's Multifactor Authentication (MFA) settings for your guest account might be causing the block.

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Frequently Asked Questions

Why does SharePoint say my account is locked when I can log in normally?

This usually happens when you are accessing content shared by another organization. Conflicting browser sessions, cached credentials, or mismatched Multi-Factor Authentication (MFA) requirements in the external guest directory can trigger this false warning.

Does clearing my browser cache fix the SharePoint locked account error?

Yes, clearing your cache or using an Incognito/InPrivate window removes old session tokens and allows you to authenticate cleanly into the external organization's SharePoint environment.

What should I tell the external IT admin if I am blocked from a shared file?

Advise them that you are receiving an 'account locked' error as an external guest user. Ask them to locate your guest account in their directory and reset or temporarily disable the MFA requirement so you can re-authenticate.

Login & Account Issues