In Office 365 SharePoint online, my users are in custom Groups with specific Read/Write Access to different Document Libraries.
User John has Read-access to a folder called "Clients" inside a Documents Library called "BUSIT" because he belongs to a Group called "Project Manager". There are other members in this Group as well.
Now, I want to set additional permissions so that John does not have any access to a specific folder (called "YouHaveNoAccess") inside this "Clients" folder. I have used "Stop Inheriting Permissions" on the folder "YouHaveNoAccess" but unsure what to do next or if I am even on the right path. Need to figure out how to exclude him from this one folder, even though he has access to all the other folders inside "Clients".
(We do not user PowerShell.)