I have a site in which there is a document library. When user 'A' creates a folder 'Test'in the document library, a SharePoint Designer Workflow runs which removes the permission of other users and only 'user A' has full access to it. Now when user 'A' uploads a document in the folder 'Test' and share it with user 'B'. User 'B' get an email link for document which is Ok. When user 'B' directly access the site, he is not able to see 'test' folder. I want to make it accessible so he can navigate to the file but wont be able to see other documents that are not shared with him. Is it possible?
I'm assuming this is because you have removed all permissions from the folder, but what you really need to do is differentiate between view permissions and edit permissions.
Essentially User B would require View Permissions for the 'Test' folder but not for all the other files in said folder.
This is why folders are generally not considered best practice in SharePoint Production environments. I would recommend instead that users create an entirely new library rather than a new folder.