From Microsoft Corporation:
“SharePoint Online (SPO) Site Collection Administrators can see all the items in their site that have been shared with any user via the new Office 365 Sharing Reports for SPO feature.
Microsoft Bulletin MC190852 Published Sep 17, 2019 – updates Sep 24, 2019
•We’ll be gradually rolling this out to targeted release customers in late September.
•We’ll be gradually rolling this out to other customers, including GCC and Department of Defense, in early October.
•The roll out will be completed worldwide by the end of November.
This message is associated with Microsoft 365 Roadmap ID 27034
How does this affect me?
SPO site owners can now generate a CSV that shows how their content is being shared, both inside and outside the organization.
Generate the report which shows all shared content from the “Shared with External Users” section of the Site Usage page. The report outputs a CSV file that contains a row for every unique user, permission, link, and item that has been shared with both internal and external users.
What do I need to do to prepare for this change?
You don’t need to do anything, but you may consider updating your SPO Site Collection Administrators training and notifying your help desk.”
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