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Authentication providers

The following table lists the available authentication providers and the storage provider that each can be used for. For instructions on adding storage services, see Add a storage service and Enable modern authentication for Microsoft SharePoint Online
Authentication Provider
Storage provider
Windows - Explicit Credentials
FileShare, 
SharePoint
 
Windows - Kerberos Constrained Delegation
FileShare, 
SharePoint
OAuth2
Box
Explicit Credentials
Workspaces
Modern
SharePoint Online