On March 30, 207, we are adjusting how anonymous access and internal links (people within my organization) are used in SharePoint Online and OneDrive for Business – to improve reliability and manageability. We are standardizing how sharing links are used and registered in the system to offer you the greatest levels of creation, visibility and control.
How does this affect me?
On March 30, SharePoint Online and OneDrive for Business will adjust aspects of anonymous access and internal links (people in my organization) that may impact any links generated before May 2016.
Any links created before May 2016, and not used since, may no longer work and the owner will need to recreate a new anonymous link and share it again with the invitee. If a link had been generated AND used before May 2016, it will continue to work after this change.
If you have any unused links that you want to continue to work, you just need to click on the link before March 15, 2017.
Please click Additional Information to learn more about sharing documents with people outside your organization.