Before most methods can be called, the instance must be logged on to the MOVEit Transfer host. (Exceptions to this include the OrgGetSAMLInfo methods.) Once signed on, all of the methods can be called, though many operations are not available based on the permission level of the user used to sign on to the MOVEit Transfer. In cases where the user's permission is not sufficient for the operation, the method will fail and a permission error will be returned from the StatusDescription property.

Below is an example of using the Client class to sign on to a MOVEit Transfer server and upload a local file.

Client oAPI = new Client();
oAPI.Host = "moveitdmz.example.com";
oAPI.Secure = true;

if (oAPI.Signon("myusername", "mypassword"))
{
       Console.WriteLine("Signed on ok");

    string newID = oAPI.FileUpload(@"C:\path\to\file.txt", oAPI.HomeFolderID);

    if (newID != "0")
    {
        Console.WriteLine("Uploaded file OK: {0}", newID);
    }
    else
    {
        Console.Error.WriteLine("Error uploading file: {0}", oAPI.StatusDescription);
    }

       if (oAPI.Signoff()) 
       {
           Console.WriteLine("Signed off ok");
    }
} 
else 
{
    Console.Error.WriteLine("Failed to sign on: {0}", oAPI.StatusDescription);
}

Reference