When you log in to Authentication->Login you pass appkey, username. If you login using the Master account the session token will be returned for that application. The master account has a unique file space under each application (If you don't need or want child accounts). By logging in with that...

When calling ListFolders you need to pass it the full path to the child so it knows which application and child you are looking at, an example would be: Master Account: mytestmaster Application: mytestapp Child Account #1: childtest1 Child Account #2: childtest2 First we would log into the account mytestmaster...