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Quick Answer

On the 'Access Denied' screen, type a brief message in the text box and click Request Access to notify the file owner.

How to Fix "Access Denied" and Permission Errors in Microsoft 365 ​

Applies to: Microsoft 365, SharePoint, OneDrive, Teams, Outlook
Article Type: Troubleshooting
Last Updated: 2026-07-10

Summary ​

Getting an "Access Denied" or "You need permission" error means your account hasn't been granted access to the file, folder, or site you're trying to view. This guide explains how to request access or troubleshoot when you're supposed to have access but don't.

Symptoms ​

  • Clicking a link to a file or folder shows Access Denied
  • You see You need permission to access this site when opening SharePoint
  • A shared mailbox or calendar says Cannot expand the folder in Outlook
  • A Teams channel shows as locked or you can't join a team you were invited to

Prerequisites ​

  • You must be signed in to your work Microsoft 365 account

Instructions ​

1. Request Access Automatically ​

Many Microsoft 365 apps have a built-in way to request access when you hit a block.

  1. If you see a "You need permission to access this item" screen in SharePoint or OneDrive, look for a text box.
  2. Type a brief reason (e.g., "I need to review the Q3 report for the marketing meeting").
  3. Click Request Access.
  4. The owner of the file or site receives an email with your request. You'll get an email when they approve it.

2. Ask the Owner to Share It Directly ​

If there is no "Request Access" button, or you're trying to access a shared mailbox or calendar, you'll need to ask the owner to grant you access.

For a file or folder (OneDrive/SharePoint):

  1. Contact the person who sent you the link.
  2. Ask them to share the file explicitly with your email address, rather than sending the link.
  3. See How to Share Files Securely Using OneDrive or SharePoint for instructions they can follow.

For a Shared Mailbox or Calendar:

  1. Determine who manages the mailbox or calendar (usually a manager or department head).
  2. Contact them and ask to be added to the access list.
  3. If they don't know how, or if IT manages the access list, submit an IT ticket requesting access and mention the mailbox name.

3. Check for the "Wrong Account" Issue ​

Sometimes, your browser tries to use a different Microsoft account (like a personal outlook.com account or a previous employer's account) to open the link.

  1. Look at the top right corner of the "Access Denied" screen.
  2. Check the email address listed there. Is it your current work email?
  3. If it's the wrong email, click the profile picture and select Sign out, or click Sign in with a different account.
  4. Sign in with your current work email and try the link again.

TIP

To prevent account mix-ups, open the link in a Private or Incognito browsing window. If it works there, you know it's a browser caching issue. See How to Use Browser Profiles to Separate Work and Personal Accounts.

4. Wait for Permissions to Sync ​

If someone granted you access or IT added you to a new group, it can take time for Microsoft 365 to update across all servers.

  1. SharePoint / OneDrive files: Usually immediate, but can take up to 15 minutes.
  2. Teams channels: Can take 1–2 hours to appear after being added.
  3. Shared Mailboxes / Calendars: Can take up to 24 hours to automatically appear in Outlook. You can try restarting Outlook to speed it up.

Troubleshooting ​

WARNING

If you are supposed to have access to a department-wide site or drive (e.g., the HR intranet or the Finance shared folder) and you don't, contact IT with the full URL of the site or folder, the exact error text, and the name of a colleague in your role who can open it — that lets them copy a working set of permissions instead of guessing. You may have been missed when you were hired or transferred.

Symptom / ErrorPotential CauseSolution
"Access Denied" when clicking a linkLink was forwarded to you but you lack permissionsAsk the original owner to share the file directly with you
"Cannot expand the folder" in OutlookMailbox permissions haven't syncedWait 24 hours after being granted access, then restart Outlook
Wrong email address shown on error pageBrowser is signed into a personal accountOpen an Incognito/Private window and sign in with your work email
"This link has expired"The sharing link had a time limitAsk the owner to generate a new sharing link
Can't access a site you used to usePermissions were audited and removedRequest access again or contact the site owner to be re-added