Once the app has been downloaded you just have to access with those credentials we were given by Travelport and which were configured and informed by our activation email (sent by TTS Finance Team).
Please check which information you are filling in, namely the password and GDS selected:
For Apollo and Galileo users:
Password to be used is the very same you use for your GDS Desktop access.
For Worldspan users:
Password to be used is the one from your BSI string and not the one for the Worldspan Go! Res.
Password for Travelport Mobile Agent to be NYPDT340