SharePoint Online – You can now define sharing link expiration on per site basis

As you may already know, you can define an expiration time (between 1 to 720 days) for anyone sharing link (aka anonymous link) from the SharePoint Administration portal

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This setting applies to all SharePoint Online site without any exception.

Well, this is changing as now you can set a ‘custom’ expiration time for specific site.

To do so you will need to download and install the latest SharePoint Online PowerShell module (version 16.0.9021.1200 available at https://www.microsoft.com/en-us/download/details.aspx?id=35588)

Then you connect to your SharePoint tenant using the below command

Connect-SPOService -Url https://<your tenant>-admin.sharepoint.com

Then you need to run the below command to overwrite the global setting and define your specific expiration time

Set-SPOSite -Identity https://<your SPO site URL> -OverrideTenantAnonymousLinkExpirationPolicy $true –AnonymousLinkExpirationInDays <number of days>

You can then confirm it using the command

Get-SPOSite -Identity https://<your SPO site URL> | fl OverrideTenantAnonymousLinkExpirationPolicy,AnonymousLinkExpirationInDays

The new expiration time is immediately applied and next time end-user is sharing with anyone, the expiration date is automatically set to match the overwritten setting as shown below with an expiration time set to 15 days – as you can see the expiration date has been set to today (August 2nd, 2019) + 15 days

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In a future update, this option will become also available through the ‘new/modern’ SharePoint Online Administration portal.

If you want to revert back to the global setting, then just run the command

Set-SPOSite -Identity https://<your SPO site URL> -OverrideTenantAnonymousLinkExpirationPolicy $false –AnonymousLinkExpirationInDays 0

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