Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Hi Gerry,
You can use PowerShell commands to add the public folder permissions.
Get-PublicFolderClientPermission "\My Public Folder"
This example retrieves the permissions for all users of \My Public Folder.
Add-PublicFolderClientPermission -Identity "\My Public Folder" -User Chris -AccessRights CreateItemsThis example adds permission for the user Chris to create items in the public folder My Public Folder.
An article for your reference: https://technet.microsoft.com/en-us/library/bb124743%28v=exchg.160%29.aspx
Thanks,
Lance