The Case of the Mysterious SharePoint Embedded Containers

A set of 80 mysterious SharePoint Embedded containers turned up because Microsoft pre-provisioned storage for files used as knowledge sources by Copilot agents. Details of the pre-provisioning are in message center notification MC1058260, but who has the time to read and analyze everything posted to the message center? And anyway, the mysterious containers have now disappeared…

https://office365itpros.com/2025/05/28/sharepoint-embedded-containers-km/