Frequently asked questions regarding TripBuilder
JS Error - "Direction API. This API project is not authorized to use this API"
This error occurs when a certain Google Maps API is not enabled for the Google Maps API key used by TripBuilder. Please check your configuration in the Google Dev console.
Our article on how to create a google maps API key also mentions which APIs need to be enabled, see here.
IBE - Cannot switch language or currency
More info about the white-labeling can be found here.