Fix appregnew.aspx Cannot Register SharePoint Applications
Question details
Users and administrators are unable to register new SharePoint applications or Azure Access Control principals using the appregnew.aspx page due to recent security policy changes.
- Product
- Microsoft SharePoint / Microsoft Entra ID
- Device & OS
- not provided
- Scenario
- Attempting to create Azure Access Control principals or register applications via appregnew.aspx in SharePoint.
- Observed behavior
- The system prevents tenant, Global, and SharePoint administrators from completing the application registration process.
Ensure you have Microsoft Entra ID (formerly Azure AD) admin access and SharePoint administrator credentials before attempting the alternative registration methods.
Register the Application via Microsoft Entra ID
Bypass appregnew.aspx by registering the application directly in Entra ID and assigning permissions via appinv.aspx.
Due to Microsoft policy changes, traditional application registration via appregnew.aspx is blocked. You must now use Microsoft Entra ID to create the application principal and then use SharePoint's appinv.aspx to map the permissions.
Sign in to the Microsoft Entra admin center, navigate to App registrations, and register a new application.
Go to API permissions for the newly created app and grant the required permissions, such as Sites.Selected.
Sign in to your SharePoint site with a SharePoint administrator account, and add that account as an additional site owner.
Navigate to appinv.aspx on the SharePoint site, enter the Application ID to look it up, and apply the required XML permission request.
Remove the administrator account from the additional site owner list to restore standard security practices.
Contact Microsoft Support for Blocked Administrations
If Global and SharePoint administrators are completely blocked from updating necessary applications, escalate the issue to Microsoft.
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Frequently Asked Questions
Why is appregnew.aspx suddenly blocked for SharePoint administrators?
Microsoft implemented security policy changes that disable application registration through appregnew.aspx to enforce more secure registration practices via Microsoft Entra ID.
What permissions do I need to grant in Entra ID for SharePoint apps?
You typically need to grant permissions such as Sites.Selected or specific Microsoft Graph API permissions depending on the application's required access level to SharePoint resources.
Can ordinary users still use appregnew.aspx?
No, the option has been completely disabled for ordinary users, and recent security updates have also extended this restriction to tenant, Global, and SharePoint administrators.
