Locking a User out when file is in use with Dropbox
I currently store my FM file on Dropbox so multiple people can access it and updated it. However, we are having the problem of two people editing it at once, resulting in a conflicted copy. I would like to set something up to notify the user when someone is already in it. or to simply lock them out when it is already being edited. Since we are each using a local copy of the database and then synching it to dropbox, I am not sure if this is possible?
Has anyone figured this out?