I know I am coming in on this late but I seem to have the same problem when I look at the HTTP response I see the following:
Server Error in '/ATServices' Application.
The user account has been locked. Please see your Autotask Administrator for details.
Not sure why but the account becomes locked when LocigMonitor goes to close the ticket off within AutoTask, I then have to unlock the account and try again and the same thing happens any ideas what I am doing wrong?
I have gone the the payload and it all looks correct and seems that its correct as it opens a ticket it just will not close them
