I am using the ABFTPUpload function in my app. It works OK, however I noticed recently, that in case the write permission for the directory on the FTP-Server is not set the function will not return an error! The FTP-server does however return an 550 error upon the request of the client.
As a workaround I will now check wether the file I have uploaded really exist on the server. This will make sure the file exists on the server.
But I still like to Know what goes wrong in the function!