Thank you for your reply. Yes, read/write is set in both, and I understand that I can set the ownership with the advanced options, which only works for existing files, and, my user can create files and folders in the share. However, if there is a subdirectory (folder) under the share, and those two users need to share files in there as well, the same does not hold true. In the sub-folder of the share, if a user A creates a file, user B cannot edit it. Do the permissions not flow down through the file system?
Thank you again for your time.