Sharing Expiration Date Does Not Apply to Existing Links: Root Cause and Fix

You set a sharing expiration date in the SharePoint admin center, but existing sharing links continue to work past that date. This happens because the expiration policy only applies to new links created after the policy is saved. This article explains why the policy does not retroactively affect existing links and provides the exact steps to enforce expiration on current shared links.

Why Expiration Dates Do Not Apply to Existing Sharing Links

SharePoint stores the expiration date inside each sharing link at the moment the link is created. When you set or change the default expiration period in the SharePoint admin center under Policies > Sharing, that change only applies to new links generated after the policy is saved.

Existing links retain their original creation timestamp and any expiration date that was assigned at that time. If the link was created before the policy existed, it has no expiration date at all. The policy system does not scan existing links and update them. This behavior is by design to prevent disruption of active sharing that users depend on.

The same limitation applies to the per-site expiration setting under Site settings > Sharing. Changing the site-level expiration window also only affects new links created from that moment forward.

Steps to Enforce Expiration on Existing Sharing Links

To force existing links to respect your new expiration policy, you must either replace them or remove them and ask users to reshare. Use the method that matches your scenario.

Method 1: Use the SharePoint Admin Center to Revoke All Existing Links

1. Open the SharePoint admin center
   Go to https://admin.microsoft.com and select SharePoint from the admin center list. Alternatively, go directly to https://admin.microsoft.com/SharePoint.
2. Navigate to Active sites
   In the left navigation, click Active sites. A list of all site collections appears.
3. Select the site with existing links
   Click the site name to open its details panel. Do not click the checkbox. Click the linked name.
4. Open the Sharing tab
   In the site details panel, click the Sharing tab. This tab shows the current sharing settings for the site.
5. Set an expiration window
   Under Expiration, select Set expiration for new sharing links and enter a number of days. This step ensures all new links will have an expiration, but does not affect existing links.
6. Revoke all existing sharing links
   Scroll down to the Sharing links section. Click Revoke all sharing links. A confirmation dialog appears. Click Revoke. This action invalidates every sharing link on the site, including anonymous links and specific people links.
7. Notify users to reshare
   After revocation, users must create new sharing links. Those new links will inherit the expiration policy you set in step 5.

Method 2: Use PowerShell to Bulk-Update Link Expiration

If you need to preserve some existing links but update their expiration dates, use the SharePoint Online Management Shell. This method requires the SharePoint Online Management Shell module.

1. Install the SharePoint Online Management Shell
   Open Windows PowerShell as an administrator and run Install-Module -Name Microsoft.Online.SharePoint.PowerShell. If you already have the module, run Update-Module -Name Microsoft.Online.SharePoint.PowerShell.
2. Connect to SharePoint Online
   Run Connect-SPOService -Url https://yourtenant-admin.sharepoint.com. Replace yourtenant with your tenant name. Sign in with a Global Admin or SharePoint Admin account.
3. Get the site URL
   Identify the site URL where you want to update links. For example: https://yourtenant.sharepoint.com/sites/ProjectX.
4. Retrieve all sharing links
   Run Get-SPOSiteSharingLink -SiteUrl "https://yourtenant.sharepoint.com/sites/ProjectX". This returns all sharing links on the site with their creation dates and current expiration.
5. Update the expiration for each link
   Use a loop to set a new expiration date. For example, to set all links to expire in 30 days from the current date:
   Get-SPOSiteSharingLink -SiteUrl "https://yourtenant.sharepoint.com/sites/ProjectX" | ForEach-Object { Set-SPOSiteSharingLink -Identity $_.Id -ExpirationTime (Get-Date).AddDays(30) }
   This command updates the expiration of every existing link to 30 days from today.
6. Verify the changes
   Run Get-SPOSiteSharingLink -SiteUrl "https://yourtenant.sharepoint.com/sites/ProjectX" again and check the ExpirationTime column for each link.

If Expiration Still Does Not Apply After the Main Fix

Expiration Date Shows as Never but Policy Is Set

If you revoked all links and users created new ones but the expiration still shows as never, the site-level policy may not be enabled. Go to the site details panel in the SharePoint admin center, click the Sharing tab, and confirm that Set expiration for new sharing links is checked and a number of days is entered. Also check that the tenant-level policy under Policies > Sharing is set to the same or a shorter expiration period.

Anonymous Links Continue to Work

Anonymous links created before the policy change do not have an expiration date. The revocation method in Method 1 removes all anonymous links. If you only want to target anonymous links, use PowerShell with a filter: Get-SPOSiteSharingLink -SiteUrl "..." | Where-Object { $_.IsAnonymous -eq $true } and then apply the expiration update.

Users Report Link Broken Immediately After Revocation

Revoking all sharing links breaks every existing link on the site, including those the site owner may still need. To avoid this, use the PowerShell method to update expiration dates instead of revoking. If you must revoke, communicate the change to all site members before performing the action.

Tenant-Level vs Site-Level Expiration: Key Differences

Item	Tenant-Level Policy	Site-Level Policy
Scope	All sites in the tenant	One specific site
Location in admin center	Policies > Sharing	Active sites > [site name] > Sharing tab
Applies to existing links?	No	No
Override behavior	Site-level policy overrides tenant-level if more restrictive	Site-level policy can be shorter or longer than tenant-level
Requires admin role	Global Admin or SharePoint Admin	Site collection admin or SharePoint Admin

You can now enforce expiration dates on existing sharing links by either revoking all links and asking users to reshare or by using PowerShell to update the expiration of each link. For ongoing management, consider setting a tenant-wide default expiration period and educating site owners to create new links after policy changes. Use the PowerShell Set-SPOSiteSharingLink cmdlet to audit and update link expiration on a regular schedule without disrupting active sharing.