Microsoft Account Errors

Fix 'An Error Occurred' When Adding a User in Microsoft 365

Maira Mehtab Sep 28, 2026 869 views

Question details

Administrators encounter an error message when attempting to create a new user account in the Microsoft 365 admin center.

Product: Microsoft 365 Admin Center
Device & OS: not provided
Scenario: Creating a new user account in the Microsoft 365 admin center.
Observed behavior: The system displays a generic 'An error occurred' message, preventing the administrator from successfully adding the user.

Before you start

Ensure your internet connection is stable and verify that your account has Global Administrator or User Management Administrator permissions before proceeding with these troubleshooting steps.

Solution 1Recommended

Use an InPrivate or Incognito Browser Window

Clearing your browser cache or using a private window can bypass temporary browser data glitches that trigger the error.

Often, corrupted cookies or outdated browser cache files interfere with the Microsoft 365 admin center scripts. A private browsing session ignores existing cached data.

Open a Private Window

Launch your web browser and open a private session by pressing Ctrl+Shift+N (Chrome/Edge) or Ctrl+Shift+P (Firefox).

Sign In to Admin Center

Navigate to the Microsoft 365 admin center (admin.microsoft.com) and log in with your administrator credentials.

Attempt User Creation

Navigate to Users > Active users, click 'Add a user', and fill out the details again to see if the process completes successfully.

Solution 2

Create the User Using PowerShell

If the web interface fails, using PowerShell can often bypass UI-related bugs to create the user directly in the system.

Solution 3

Gather Details and Contact Microsoft Support

If alternative methods fail, the issue may be a backend service problem requiring Microsoft Support intervention.

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Frequently Asked Questions

Why do I get 'An error occurred' when adding users in Microsoft 365?

This generic error is usually caused by temporary browser cache conflicts, a backend server outage, or incorrect administrator permissions. Trying an incognito window or clearing your cache often resolves frontend conflicts.

Do I need special permissions to add a user in Microsoft 365?

Yes. You must be assigned either the Global Administrator or User Management Administrator role to create new user accounts in the admin center. Regular users cannot access this feature.

Can I check if Microsoft 365 is experiencing an outage?

Yes. Log into the Microsoft 365 admin center and navigate to Health > Service health. This dashboard will show any ongoing active incidents that might be affecting user management services.

How long does it take for a newly added user to appear in the directory?

Typically, new user accounts appear immediately in the admin center list. However, provisioning their specific services like Exchange Online mailboxes or Teams access can take up to 24 hours in some scenarios.

Login & Account Issues