Forum Discussion
File share migration to SharePoint Online Permissions?
Microsoft's free https://docs.microsoft.com/en-us/sharepointmigration/introducing-the-sharepoint-migration-tool can do this, migrating file shares to SharePoint Online and bring across permissions with caveats:
https://docs.microsoft.com/en-us/sharepointmigration/understanding-permissions-when-migrating
Ozlem Yes, for it to work at all, users must be mapped between on-premises and SharePoint Online, usually done by https://docs.microsoft.com/en-us/office365/enterprise/office-365-integration your Active Directory accounts to Office 365 or with an SPMT https://docs.microsoft.com/en-us/sharepointmigration/create-a-user-mapping-file-for-data-content-migration.
The only permissions that will be migrated are Read and Write. If a file has Write permission for user1, then the file will be set to Contribute for user1 in SPO. If a file has Read permission for user1, then the file will be set to Read for user1 in SPO. Special permissions, such as Deny, will not be saved.
These are the different combinations when using the setting above or not:
