{"id":660,"date":"2025-07-07T11:09:11","date_gmt":"2025-07-07T09:09:11","guid":{"rendered":"https:\/\/www.busted.dk\/blog\/?p=660"},"modified":"2025-07-07T11:26:30","modified_gmt":"2025-07-07T09:26:30","slug":"how-to-resolve-id-mismatch-access-issues-in-sharepoint-and-onedrive","status":"publish","type":"post","link":"https:\/\/www.busted.dk\/blog\/how-to-resolve-id-mismatch-access-issues-in-sharepoint-and-onedrive\/","title":{"rendered":"Fix ID mismatch in SharePoint or OneDrive \u2013 Solve access denied error"},"content":{"rendered":"\n

Fix ID mismatch in SharePoint or OneDrive is a common issue that occurs when a user returns to your organization or a new account is created using the same email or initials as someone previously deleted. Although permissions may appear correct, the user can suddenly be blocked from accessing shared files or sites with an “Access Denied” error. This happens because SharePoint continues to reference the internal ID of the deleted account, creating a hidden conflict that breaks access.<\/p>\n\n\n\n

If you need to fix ID mismatch in SharePoint or OneDrive, Microsoft provides a simple diagnostic tool that helps resolve the problem quickly and without the need for PowerShell or manual cleanup.<\/p>\n\n\n\n

What\u2019s Happening?<\/h2>\n\n\n\n

Behind the scenes, SharePoint stores internal user IDs. If a user is deleted and later re-created with the same UPN (email address) or initials (e.g. abc@domain.com<\/a>), SharePoint may still hold onto the old ID from before. This mismatch breaks permissions, even if they look fine in the UI.<\/p>\n\n\n\n

The Easy Fix<\/h2>\n\n\n\n

Microsoft has created a built-in diagnostic tool to fix this exact issue. Here\u2019s how to use it:<\/p>\n\n\n\n