logo
search
Security Policy Errors

How to Fix Exchange Online Permission Errors for Global Administrators

Bushra ParveenBushra Parveen Sep 28, 2026 868 views

Question details

Global administrators are experiencing unexpected permission errors when attempting to perform administrative tasks in Exchange Online.

How to Fix Exchange Online Permission Errors for Global Administrators
Product
Exchange Online
Device & OS
not provided
Scenario
Creating shared mailboxes or accessing Exchange Online threat policies via the admin portal.
Observed behavior
The system displays a permission error or access denied message, even though the user is assigned the Global Administrator role.
Before you start

Verify that your account has the Global Administrator role correctly assigned in Entra ID and ensure your Microsoft 365 subscription is currently active.

Solution 1Recommended

Submit a Service Request in the Microsoft 365 Admin Center

Because this issue typically stems from backend service degradation or hidden tenant permission anomalies, contacting Microsoft Support is the most direct resolution.

Occasionally, backend synchronization issues or unexpected Role-Based Access Control (RBAC) misconfigurations can strip or ignore a Global Administrator's permissions within Exchange Online. Microsoft Support engineers have the necessary backend access to investigate your tenant configuration and force a permissions sync.

1
Log into the Admin Center

Navigate to the Microsoft 365 admin center (admin.microsoft.com) and log in using your Global Administrator credentials.

2
Access the Support Menu

On the left-hand navigation pane, scroll down to the bottom, click on 'Show all' if necessary, and select 'Support', followed by 'Help & support'.

3
Search for the Issue

In the help pane that slides out, type 'Exchange Online permission error' and press Enter to review any automated diagnostic solutions.

4
Create a New Service Request

If the automated solutions do not resolve your issue, click the headset icon or the 'Contact support' button at the bottom of the pane to open a formal service request. Provide details about the specific tasks failing, such as creating shared mailboxes or viewing threat policies.

Submit a Service Request in the Microsoft 365 Admin Center
Support Response Times: Response times will vary based on your specific Microsoft 365 subscription tier and the severity level selected during the ticket creation process.
Free Microsoft Office alternative

Try WPS Office for Seamless Document Management

While you wait for Microsoft Support to resolve your Exchange Online administrative issues, consider WPS Office for your daily productivity needs. It is a lightweight, completely free alternative that offers excellent compatibility with Microsoft Office formats, ensuring your workflow remains uninterrupted.

Fully compatible with Microsoft Word, Excel, and PowerPoint document formats (.docx, .xlsx, .pptx).Lightweight software that installs quickly and consumes minimal system resources.Familiar tabbed user interface reduces the learning curve for transitioning Office users.Built-in PDF editing tools for comprehensive and secure document management.
microsoft office alternative - wps office

Frequently Asked Questions

Why do Global Administrators get permission errors in Exchange Online?

This can occur due to backend synchronization delays across Microsoft's servers, temporary service outages, or hidden Role-Based Access Control (RBAC) misconfigurations within the tenant that fail to recognize the assigned administrative roles.

Can I fix Exchange permission errors without contacting Microsoft Support?

You can try a self-service fix by having another administrator remove and then re-assign the Global Administrator or Exchange Administrator role to your account. However, if the issue involves backend synchronization failures, only Microsoft Support can resolve it.

How long does it take for role changes to sync in Microsoft 365?

Role changes or newly assigned admin permissions can sometimes take up to 24 hours to fully propagate across all Microsoft 365 services, including the Exchange Online admin center.